Best practices for writing email subject lines
Posted: Mon Feb 17, 2025 10:36 am
Now that we know the critical elements of a great subject line, let's dive into some best practices for email subject lines that can dramatically improve your open rates.
1. Keep it short and sweet
Short subject lines are mobile-friendly and el salvador mobile database more likely to grab attention. With more than half of all emails being opened on mobile devices, it’s critical that your subject line doesn’t get cut off. In fact, emails with subject lines under 50 characters have a 12% higher open rate.
Use between 40 and 60 characters to ensure visibility on most devices. The best strategy is always to keep it short, clear and practical.
Examples :
“Your order has been sent”
“New offers inside – limited time!”
2. Personalize your subject lines
Personalization is one of the most effective ways to increase open rates. People are more likely to engage with content that is relevant to them. Personalized subject lines can increase open rates by 26%.
Incorporate data-driven personalization to make your subject line feel more personalized and relevant. Use automation tools to dynamically customize your subject lines based on customer interactions.
Enter r Recipient Name: “John, your weekend getaway awaits!”
Reference to past behavior: “You left something in your cart”
Take advantage of location or preferences: “Discover the best deals near you!”
3. Create a sense of urgency or scarcity
Urgency and scarcity drive immediate action, making recipients feel like they might miss out if they don’t open the email right away. Emails with urgency-related subject lines can have up to 22% higher open rates.
Use countdowns, deadlines, and phrases like “Hurry” or “Time is limited” to create urgency. Be careful not to overdo it, though, as too much urgency can make your emails seem spammy.
Examples :
“Last Hours: Save 50% Today Only!”
“Last chance to claim your reward!”
4. Use numbers, lists and statistics
Using numbers in your subject line sets clear expectations and makes your content more engaging. Lists give recipients a quick preview of what they’ll get when they open your email. Subject lines with numbers have a 15% higher open rate.
Use odd numbers in your subject lines to attract more attention. “5” tends to work better than “4” or “6” because it’s unexpected and memorable.
1. Keep it short and sweet
Short subject lines are mobile-friendly and el salvador mobile database more likely to grab attention. With more than half of all emails being opened on mobile devices, it’s critical that your subject line doesn’t get cut off. In fact, emails with subject lines under 50 characters have a 12% higher open rate.
Use between 40 and 60 characters to ensure visibility on most devices. The best strategy is always to keep it short, clear and practical.
Examples :
“Your order has been sent”
“New offers inside – limited time!”
2. Personalize your subject lines
Personalization is one of the most effective ways to increase open rates. People are more likely to engage with content that is relevant to them. Personalized subject lines can increase open rates by 26%.
Incorporate data-driven personalization to make your subject line feel more personalized and relevant. Use automation tools to dynamically customize your subject lines based on customer interactions.
Enter r Recipient Name: “John, your weekend getaway awaits!”
Reference to past behavior: “You left something in your cart”
Take advantage of location or preferences: “Discover the best deals near you!”
3. Create a sense of urgency or scarcity
Urgency and scarcity drive immediate action, making recipients feel like they might miss out if they don’t open the email right away. Emails with urgency-related subject lines can have up to 22% higher open rates.
Use countdowns, deadlines, and phrases like “Hurry” or “Time is limited” to create urgency. Be careful not to overdo it, though, as too much urgency can make your emails seem spammy.
Examples :
“Last Hours: Save 50% Today Only!”
“Last chance to claim your reward!”
4. Use numbers, lists and statistics
Using numbers in your subject line sets clear expectations and makes your content more engaging. Lists give recipients a quick preview of what they’ll get when they open your email. Subject lines with numbers have a 15% higher open rate.
Use odd numbers in your subject lines to attract more attention. “5” tends to work better than “4” or “6” because it’s unexpected and memorable.