75+ Cold Email Subject Lines with Examples to Get Higher Open Rates [2025]

Cold emails are an effective way to generate leads and opportunities, even when starting. A great subject line grabs attention, shows value, and sparks curiosity.

The average conversion rate is 0.2153% (1 deal for every 464 emails sent) across different industries.

Your subject line plays a critical role in standing out. Whether promoting services, building a brand, or securing partnerships, it sets the tone.

This post shares 75+ examples of cold email subject lines to boost open rates and turn cold outreach into real opportunities.

So let’s get started,

What is a Cold Email?

A cold email is when you reach out to someone for the first time through email without any prior interaction or relationship.

Cold emails are great for raising awareness, generating leads, promoting events, or building partnerships.

To make it more effective, focus on crafting a subject line and message that feels personal and valuable, so it gets opened and not ignored.

Importance of a Good Cold Email Subject Line

Now, I’m going to tell you the importance of crafting a strong cold email subject line and how it can significantly impact your open rates and engagement.

• First impression matters: Your subject line is the first thing email recipients see, it sets the tone for your cold sales emails. Make it count.
• Catch their eye: Use personalized subject lines with the prospect’s name or company name to show relevance. For example, “First Name, let’s solve [common business challenge]!”
• Keep it short: A small word count (under 50 characters) ensures your subject line is visible in crowded inboxes and preview text.
• Focus on value: Highlight email benefits for prospects, like addressing their business needs or boosting sales. Avoid generic subject lines that don’t resonate.
• Use humor wisely: Humorous subject lines, when relevant, can pique readers’ interest. Example: “Let’s add a laugh to your sales strategy, First Name!”
• Be specific: Mention a relevant topic or industry-specific examples to show you understand their challenges.
• Avoid the spam folder: Keep your subject line professional and avoid overly salesy language that could trigger spam filters.
• Spark curiosity: Ask engaging questions or address top product questions, like “Struggling with [business challenge]?” or “Your top three product questions answered.”
• Target ambitious prospects: Craft subject lines that appeal to business leaders or decision-makers ready to act. Example: “Grow your business with one simple tweak, [Name]!”
• Drive action: Make it clear your email has a purpose, whether it’s a meeting request or sharing insights from your company page or social media.
• Test what works: Experiment with awesome examples of catchy email subject lines and adapt based on open rates.

Types of Cold Emails

Let’s explore the different types of cold emails you can use to reach out to prospects and build connections.

1. Prospecting Emails: These emails focus on finding potential customers who could benefit from your product or service. They aim to show prospect value by addressing a specific need or pain point. Keep it brief and clear to grab your prospect’s interest quickly.
2. Introduction Emails: The goal of an introduction email is to make a first connection. You’ll want to introduce yourself and your business in a friendly, approachable way while showing how you can add value.
3. Sales Emails: Sales emails are focused on boosting sales by highlighting the benefits your product can provide. Use your email content to show how your solution can solve a problem, and keep the subject line short and compelling to pique the reader’s interest.
4. Partnership Emails: These emails aim to build mutually beneficial relationships. Mention how you both can gain from collaborating. Focus on how the partnership benefits both sides.
5. Networking Emails: Networking cold emails are about building connections with people in your industry. Whether it’s to ask for advice, collaborate, or share resources, make it personal and show how connecting can be valuable to them.
6. Event Invitation Emails: If you’re hosting a webinar or event, an event invitation email will help drive interest. Let the recipient know what value they’ll get from attending and how it aligns with their business goals.
7. Follow-Up Emails: A follow-up email is sent to remind the recipient of your initial email. It’s a polite nudge to keep the conversation going and schedule a meeting or take action.
8. Feedback or Survey Emails: Asking for feedback shows you value the prospect’s opinion. You’re looking to improve and build better products. Keep it conversational and easy to respond to

75+ Examples of Cold Email Subject Lines to Copy

Now, let us look at various scenarios with examples of cold email subject lines so that you can replicate a similar tactic.

1. Short Introduction Cold Email Subject Lines

When executed effectively, cold email subject lines grab attention in less than 50 characters and convey value.

They are key to initiating contact and raising awareness of your offerings, rather than directly selling.

The goal is to create a new relationship by clearly explaining who you are, what you do, and how the recipient could benefit.

Since this is often the first impression of you and your brand, subject lines should balance professionalism with a friendly, approachable tone.

Being clear, concise, and intriguing will prompt the recipient to open your email and engage with your message.

• “Quick Intro from [Your Name]” – Simple and friendly, this lets the recipient know right away what the email is about.
• “Hello from [Your Company]!” – Including your company name builds trust and instantly makes the email recognizable.
• “A Brief Introduction” – This subject line suggests your email will be short and to the point, making it more likely to be opened.
• “New Connection: [Your Name]” – This sparks curiosity and makes the recipient want to learn more about you.
• “Greeting from [Your City]” – A personal touch that makes the email feel more relatable and human.
• “Hello! Exploring Opportunities Together?” – This hints at collaboration and invites the recipient to see how you could work together.
• “Introduction: [Your Name] at [Your Company]” – Clear and transparent, this subject line lets the recipient know exactly who you are.
• “Quick Note: Let’s Connect!” – Friendly and concise, this invites a casual interaction.
• “Meeting You Virtually, [Your Name]” – This adds a personal touch to the idea of a virtual meeting, creating a connection.
• “Greetings! [Your Company] Introduction” – Formal yet clear, it sets the context for your email in a professional way.

2. Subject Lines for “Problem-Solution” Cold Emails

These cold email subject lines grab your attention by addressing a problem you can relate to and offering a clear solution.

The goal is to position your offering as the key to solving your pain points. Focus on showing value with phrases like “increase profits” or “recover lost time” to demonstrate that you understand your needs.

Keep it clear, and genuine, and avoid exaggeration. Using good cold email subject lines ensures you’re engaging your prospect and offering real solutions, increasing the chances your email will be opened.

• “Struggling with [Specific Problem]? We’ve Got Your Solution!” – This subject line speaks directly to the recipient’s problem, offering an immediate solution that prompts them to open your email.
• “Say Goodbye to [Pain Point] with [Your Solution]” – By addressing a common frustration, this line promises relief, making your solution the focus of the email’s value.
• “Unlock Efficiency: [Your Solution] for [Problem]” – This positions your solution as the key to better efficiency, making it clear that it’s a practical way to solve a specific issue.
• “Overcoming [Challenge]: Here’s [Your Solution]” – Acknowledging the challenge, this line introduces your solution as the way forward, showing empathy and offering real value.
• “Tired of [Problem]? [Your Solution] Makes It Better” – Empathizing with the recipient’s struggles, this line presents your solution as the more effective way to resolve their frustrations.
• “Solving the Puzzle: [Your Solution] for [Complex Issue]” – This frames the issue as a puzzle and your solution as the missing piece, enticing the reader with a sense of completion.
• “Optimize Your [Process] with [Your Solution]” – appeals to those wanting to improve their processes, this subject line suggests your solution can bring tangible benefits.
• “Facing [Issue]? Let [Your Solution] Guide You” – Using “guide” implies support, positioning your solution as a trustworthy way to navigate and resolve challenges.
• “Revolutionize [Your Area]—[Your Solution] is the Answer” – This subject line promises transformative change, presenting your solution as the key to revolutionizing a specific area.
• “A Solution Tailored for [Recipient’s Industry/Challenge]” – Personalizing the subject line for the recipient’s industry or challenge shows your solution is designed specifically for their needs.

3. Subject Lines for Cold Emails to Highlight Success Stories

Cold emails showcasing success stories help build trust by showing the real value you’ve delivered. This makes it easier for your recipient to see why they should work with you.

The goal is to show how your solution has successfully addressed similar challenges. It also provides social proof that makes potential clients more likely to engage.

These subject lines focus on specific outcomes, showcasing the coach’s ability to deliver valuable, tangible results.

1. “Quick Follow-Up on Our Recent Conversation” – This subject line is effective because it references a previous interaction, making it clear to the recipient that the email is a continuation of an existing conversation, promoting engagement.
2. “Gentle Reminder: [Topic of Previous Discussion]” – The use of “Gentle Reminder” adds a polite touch while specifying the topic keeps the email focused and reminds the recipient of the context.
3. “Did You Get a Chance to Review Our Proposal?” – Poses a direct question related to a proposal or discussed topic, prompting the recipient to check the email for relevant details.
4. “Follow-Up: Your Input Needed on [Specific Topic]” – Clearly states the purpose of the follow-up. It emphasizes the need for the recipient’s input on a particular matter.
5. “Checking In: How Can We Move Forward?” – Strikes a balance between courtesy and forward momentum. It provides a signal of a willingness to progress while respecting the recipient’s pace.
6. “Following Up on Your Interest in [Product/Service]” – Acknowledges the recipient’s prior interest. It creates a personalized touch and reminds them of the value your product or service offers.
7. “Any Further Questions? Let’s Discuss.” – Encourages open communication by inviting questions. It gives signals of a willingness to address any concerns or uncertainties the recipient may have.
8. “Closing the Loop: Next Steps for [Project/Opportunity]” – Indicates a clear intention to move forward. It helps to emphasize the next steps and provides a sense of continuity from previous discussions.
9. “Your Thoughts Matter: Revisiting Our Conversation” – Adds a personal touch by emphasizing the importance of the recipient’s thoughts, creating a sense of collaboration and value.
10. “Building Success Together: Follow-Up on [Key Point]” – Positions the relationship as a collaboration towards success, using the follow-up to address a specific key point discussed earlier.

4. Cold Email Subject Lines for Curiosity

Curiosity-driven cold email subject lines are designed to intrigue and captivate recipients by sparking curiosity without giving away too much.

For online trainers, this approach works well by offering a glimpse of potential results or insights that could benefit the reader.

The key is to leave just enough information to pique interest, prompting the recipient to learn more about how the trainer’s services can benefit them.

1. “The Secret to [Achieving a Desired Outcome]” – This subject line creates curiosity by hinting at a secret or key information that can lead to the achievement of a desired outcome, compelling the recipient to open up and learn more.
2. “Unlocking a Hidden Opportunity for [Recipient’s Industry]” – By suggesting a hidden opportunity specific to the recipient’s industry, this subject line sparks curiosity about something valuable they may not be aware of.
3. “Ever Wondered How [Industry Leader] Boosted Their [Outcome]?” – By referencing a successful figure or company in the recipient’s industry and hinting at their success strategy, this subject line triggers curiosity about proven methods.
4. “The Missing Piece in Your [Process/Strategy]” – Implies that there’s a crucial element missing in the recipient’s current approach. It encourages curiosity about what this missing piece might be and how it can benefit them.
5. “Unveiling the Future of [Industry/Technology]” – Positions your email as a source of forward-looking insights, prompting curiosity about the future and the role your information or solution plays in it.
6. “What If You Could [Achieve a Remarkable Goal]?” – By posing a “What if” scenario related to a remarkable goal, this subject line ignites curiosity about the possibilities and encourages the recipient to open the email.
7. “A Surprising Fact About [Industry Trend]” – Utilizes the allure of surprise by promising an unexpected fact related to a current industry trend. It helps to prompt the recipient’s curiosity to uncover new insights.
8. “The Untold Story Behind [Success/Innovation]” – Suggests that there’s a compelling, untold story or narrative related to success or innovation. It intrigues the recipient and motivates them to open the email.
9. “Curious About the Latest Breakthroughs in [Industry]?” – Directly addresses the recipient’s curiosity about the latest breakthroughs in their industry. It prompts them to open the email to stay informed.
10. “Discover the Game-Changing Approach to [Solving a Challenge]” – Creates anticipation by promising a game-changing approach to solving a specific challenge. it encourages the recipient to open the email and explore the offered solution.

5. Value Proposition Cold Email Subject Lines

Value proposition cold emails focus on showing you how your business can benefit from a specific solution.

The goal is to clearly explain how your product or service can solve your pain points, save you time, or increase your productivity.

The best cold email subject lines should give you a strong reason to open, with measurable value that feels real and not overhyped. When creating subject lines, keep it simple and focused on results. F

Avoid vague claims, and always tie the benefits directly to what matters most for you.

1. “Revolutionize Your Workflow with [Your Product/Service]” – This subject line suggests a significant positive change by using the term “revolutionize” and immediately communicates the value of your product or service in enhancing the recipient’s workflow.
2. “Boost Your Productivity: [Your Solution] Unleashed” – Promises a tangible benefit, in this case, increased productivity, and positions your solution as the catalyst for that improvement, making the value proposition clear.
3. “Transforming Challenges into Opportunities with [Your Innovation]” – Frames your product or service as a transformative tool that turns challenges into opportunities, showcasing its positive impact.
4. “Elevate Your Strategy: Introducing [Your Solution]” – Highlights the concept of elevation, suggesting that your solution has the power to enhance the recipient’s strategy and overall approach to their goals.
5. “Unlocking Growth: [Your Product/Service] at Your Service” – Conveys the value proposition of growth and positions your product or service as the key to unlocking that growth potential.
6. “Effortless [Task] Mastery with [Your Solution]” – Promises mastery of a specific task with minimal effort. It showcases the ease and effectiveness of your solution.
7. “Experience Seamless [Process] with [Your Innovation]” – Highlights an easy experience in a particular process. It indicates that your innovation can simplify and optimize the recipient’s operations.
8. “Maximize Efficiency: [Your Product/Service] Unleashed” – Highlights the value proposition of efficiency, suggesting that your product or service, once unleashed, can maximize the recipient’s operational efficiency.
9. “Empower Your Team: [Your Solution] in Action” – Communicates the value of empowerment for the recipient’s team and implies that your solution is the driving force behind this positive change.
10. “Achieve [Desired Outcome] Faster: Try [Your Solution]” – Offers a clear and compelling value proposition by promising a faster achievement of a desired outcome through the adoption of your solution.

6. Personalized Connection Cold Email Subject Lines

Personalized cold emails focus on connecting with you by highlighting shared interests, your business, or industry-specific details. This approach makes the email feel customized, not like a mass message.

These subject lines show you’ve researched the recipient, making it clear the email isn’t just another generic message.

Effective cold email subject lines like this build rapport and increase the chances of your message being opened and acted upon.

By relating directly to the recipient’s interests or expertise, you demonstrate genuine care, not just a sales pitch.

1. “Our Shared Interest in [Topic/Event] – What’s Your Perspective?”Acknowledges a shared interest or connection point, making the recipient feel recognized and inviting them to contribute their perspective, boosting engagement.
2. “Connecting the Dots: [Their Interest] and [Your Offer]” – Demonstrates awareness of the recipient’s interests and suggests a connection between those interests and the value your offer brings, creating a personalized link.
3. “Remember [Shared Experience/Interest]? Let’s Build on That!” – Recalls a specific shared experience or interest, invoking a sense of familiarity and inviting the recipient to build on that foundation.
4. “How [Recipient’s Company] Can Benefit from [Your Solution]” – Directly address the recipient’s company, indicating a tailored approach, and immediately communicate the potential benefits of your solution.
5. “Incorporating Your Feedback: [Improvement/Enhancement]” – Demonstrates responsiveness by referencing past feedback or interactions. It signals a commitment to improvement or enhancement based on the recipient’s input.
6. “Inspired by Your [Project/Initiative] – Let’s Collaborate” – Expresses admiration for a specific project or initiative the recipient is involved in. It creates a positive connection and suggests collaboration.
7. “Your Insights Matter: Exploring [Shared Interest]” – Emphasizes the recipient’s insights, signaling a genuine interest in their thoughts and creating a connection around a shared interest.
8. “Bringing Value to [Recipient’s Goal] – Let’s Discuss How” – Directly addresses the recipient’s goal, conveying a focus on their objectives and inviting a discussion on how your offering can contribute.
9. “Personalized Strategies for [Recipient’s Challenge]” – Highlights personalization by addressing the recipient’s specific challenge, signaling a tailored approach, and offering strategies to address it.

7. Time-Limited Offer Cold Email Subject Lines

Time-limited cold emails create a sense of urgency, pushing you to take action quickly. By offering exclusive deals or one-time discounts, they encourage you to act before the opportunity ends.

For example, as a digital creator agency “Only 48 Hours Left: 30% Off Our Digital Marketing Services” shows urgency and what you can miss. These good cold email subject lines focus on scarcity, making you feel the need to act fast.

1. “24-Hour Flash Sale: [Product/Service] at 50% Off!” – Communicates urgency with “24-Hour Flash Sale” and specifies a significant discount percentage. It encourages the recipient to act quickly to secure the offer.
2. “Act Fast: Exclusive [Product/Service] Deal Ends Tomorrow!” – Utilizes the phrase “Act Fast” to create urgency and specify the end date. It motivates the recipient to take advantage of the exclusive deal before it expires.
3. “Limited Time Only: Buy One, Get One Free – Today Only!” – Highlights a compelling offer with “Buy One, Get One Free” and emphasizes the urgency with “Today Only,” driving immediate action.
4. “Unlock Your Discount: 48 Hours Only!” – Uses the term “Unlock” to create a sense of exclusivity and specifies a short time frame of 48 hours. It prompts the recipient to open the email and discover the discount.
5. “Final Hours: [Product/Service] Special – Don’t Miss Out!” – Incorporates “Final Hours” to emphasize the urgency and includes “Don’t Miss Out” to create a fear of missing the special offer, compelling the recipient to open the email.
6. “Early Bird Access: Limited-Time [Product/Service] Offer!” – Offers a sense of exclusivity with “Early Bird Access” and communicates a limited-time nature. It encourages recipients to act promptly to access the special offer.
7. “Last Call: Grab Your [Discount/Deal] Before Midnight!” – Uses “Last Call” to signal urgency and specify the deadline of “Before Midnight,”. It creates a clear call to action for the recipient to take advantage of the offer.
8. “Exclusive 72-Hour Offer: [Benefit] Just for You!” – Communicates exclusivity with “Exclusive” and emphasizes the time limitation with “72-Hour Offer,” making the recipient feel special and motivated to act swiftly.
9. “Limited-Time Bundle: Save Big on [Products/Services]!” – Promotes a bundle offer and clearly states the time limitation, encouraging recipients to act promptly to secure significant savings.
10. “Final Day: [Product/Service] Clearance – Up to 70% Off!” – Creates urgency with “Final Day” and highlights the significant discount percentage. It compels the recipient to explore the clearance offer before it concludes.

8. Mutual Contact Or Networking Cold Email Subject Lines

When you mention a mutual contact, you instantly build trust. It shows you’re not a stranger, and it creates a warmer introduction.

In your subject line, mention the mutual contact’s name and how they can help the recipient, making it clear why you’re reaching out.

1. “Introduction from [Mutual Contact’s Name]” – Utilizes the name of a mutual contact to establish immediate credibility and create a connection. It increases the likelihood of the recipient opening the email.
2. “Connecting Through [Mutual Contact’s Name]” – Directly mentions the mutual contact. it indicates the purpose of the email is to establish a connection based on the shared association, fostering a sense of trust.
3. “Recommended by [Mutual Contact’s Name]: Let’s Connect!” – Highlights the endorsement by a mutual contact. It establishes a sense of recommendation and makes the recipient more open to initiating a connection.
4. “Exploring Synergies: [Mutual Contact’s Name] Connection” – Suggests a collaborative approach by using the term “Synergies” and emphasizes the shared connection. It signals a potential mutual benefit from the interaction.
5. “Hello from [Your Name], Recommended by [Mutual Contact’s Name]” – Combines personalization by introducing yourself and mentioning the mutual contact. It creates a warm and recommended introduction.
6. “Mutual Contact [Mutual Contact’s Name] Thought We Should Connect” – Directly communicates the intention of the mutual contact for connection. It creates an easy introduction.
7. “Building Connections: [Mutual Contact’s Name] Referred Me to You” – Focuses on the act of building connections and explicitly states that the mutual contact referred to the sender. It establishes credibility and purpose.
8. “A Warm Introduction: [Your Name] via [Mutual Contact’s Name]” – Emphasizes the warmth of the introduction and clearly states the mutual contact’s role in connecting the sender, making the email more inviting.
9. “Common Ground: [Mutual Contact’s Name] Connects Us” – Highlights the shared connection through the term “Common Ground,”. It creates a sense of familiarity and encourages the recipient to explore the connection.
10. “Networking Opportunity: [Mutual Contact’s Name] Recommended Us” – Positions the email as a networking opportunity and emphasizes the recommendation by the mutual contact. It signals a professional and beneficial interaction.

Best Practices to Write Good Cold Email Subject Lines

Here are best practices for writing effective cold email subject lines:

• Keep it concise: Stick to under 50 characters so your subject line shows fully in inboxes.
• Communicate value: Highlight what you can offer and how it benefits the recipient.
• Use power words: Add strong, action-driven verbs to grab their attention.
• Personalize strategically: Include details that show you know them and their needs.
• Pose intriguing questions: Make them curious with thought-provoking questions.
• Convey urgency selectively: Create a sense of importance, but don’t overdo it.
• Demonstrate authority and expertise: Show you know your stuff with clear, confident language.
• Feature social proof and results: Share real successes to build trust and credibility.
• Maintain professionalism: Stay clear of slang or anything that feels too casual.
• Include a clear next step: Let them know exactly what to do next.
• Experiment and optimize: Try different approaches and track what works best for you

Is It Still a Good Idea to Use Cold Email Marketing in 2024?

Is cold outreach still effective today with growing spam filters and customer resistance? The answer is yes, but only if you approach it strategically. Without care, cold emails can annoy more than attract.

For you, the benefits of cold email marketing include lower costs, targeting niche audiences, and creating direct pipelines you control.

With the right cold email subject line and value-driven messaging, they can open doors to meaningful relationships.

However, challenges like spam filters, lower deliverability, and the risk of sounding too salesy persist. To make it work, focus on niche communities that value partnerships or use exclusive offers to drive quick action.

For the best results, mix cold outreach with value-driven content before pitching directly. Build relationships first, it makes all the difference.

Cold emails can still work, but only when they’re thoughtful, helpful, and well-timed. Use them as one part of a balanced lead-generation strategy.

Reliable Tools to Run Cold Email Campaigns

Now, let’s dive into some reliable tools you can use to simplify and optimize your cold email campaigns, making them more effective and impactful.

1. Mail Mint

Mail Mint is a comprehensive cold email marketing tool that streamlines and enhances your email outreach campaigns.

With features like personalized templates, automated follow-ups, and detailed analytics, Mail Mint helps you to craft engaging emails, schedule targeted campaigns, and track the success of your outreach efforts.

Its user-friendly interface and robust set of tools make it an ideal choice for businesses looking to efficiently manage and optimize their cold email campaigns while ensuring compliance with email marketing regulations.

2. Mailchimp

Mailchimp is a widely used email marketing platform that offers a user-friendly interface and a range of features for creating, sending, and analyzing cold email campaigns.

With customizable templates, segmentation options, and automation workflows, Mailchimp provides a versatile solution for businesses of all sizes.

It also includes analytics tools to track the performance of your campaigns and improve engagement over time.

3. Woodpecker

Woodpecker is a specialized cold email automation tool designed to facilitate outbound email campaigns.

It features personalized email sequences, follow-up automation, and A/B testing to optimize your outreach strategy.

Woodpecker’s intuitive platform helps users create effective cold email campaigns, manage responses, and monitor the performance of individual emails within a sequence.

4. Yesware

Yesware is a cold email tool that integrates easily with Gmail and Outlook. It also enhances your email outreach within the familiar environment of your email client.

It provides features like email tracking, customizable templates, and analytics to help sales professionals and marketers optimize their cold email campaigns.

Yesware’s real-time tracking and engagement insights help users to make data-driven decisions and improve their outreach effectiveness.

Conclusion

When reaching out cold, it’s important to make a strong first impression that feels personal, valuable, and human.

Your subject line should reflect your brand’s personality and strategy, making it compelling enough to start a conversation with new contacts.

With the right approach and tools, like WPFunnels, you can turn interest into real opportunities. If you’re looking to boost your email list and improve outreach for your WordPress site, I highly recommend trying MailMint.

It helps you craft and schedule emails that maximize deliverability, open rates, and campaign performance. Best of luck with your outreach and achieving your business goals.

** FAQs **

What are catchy email subject lines?

• Catchy subject lines grab your recipient’s attention and make them want to open your email. Keep it short, clear, and intriguing. Personalize it with their name or company to increase engagement.

How do I close an email professionally?

• Close your email politely and encourage the next step. Use phrases like “Best regards” or “Looking forward to hearing from you” to leave a positive impression and keep the conversation going.

How can I make my cold email subject line stand out?

• To make your subject line stand out, keep it personal and clear. Mention their name or company, and offer value right away. Testing different approaches will help you find what works best.

What are some examples of subject lines for sales emails?

Here are a few subject lines for sales emails:

• “Unlock [Benefit] with [Your Product]”
• “Increase Your [Metric] with Our Solution”
• “Quick Question about [Prospect’s Business]”

How can I improve my email open rates?

• To improve your open rates, craft personalized subject lines and avoid spammy words. Keep things simple, clear, and to the point. Don’t forget to test and see what resonates with your audience.