Deliverability: Emails that exceed the size limit may be
bounced back to the sender or end up in the recipient's spam folder.
Load Time: Larger emails take longer to load, which can negatively impact the recipient's experience and reduce engagement rates.
Storage Constraints: Recipients with limited mailbox storage may not receive large emails, and they may be automatically deleted or archived.
Common Email Size Limits
Different ESPs have varying size limits. Here are some common limits: Gmail: 25 MB
Yahoo Mail: 25 MB
Outlook: 20 MB
Apple Mail: 20 MB
Note that these limits include the entire email, not just attachments. It's important to be aware of these limits to ensure your emails are successfully delivered.
How to Check Email Size
You can check the size of your email by using the "properties" or "details" option in your email client or ESP. Many ESPs also provide tools to check and optimize email size within their platform. It's a good practice to verify the size before sending out your
email campaign.
Strategies to Reduce Email Size
Here are some effective strategies to reduce the size of your email: Compress Images: Use image compression tools to reduce the file size of images without compromising quality.
Limit Attachments: Instead of attaching large files, use hyperlinks to direct recipients to download content from your website.
Optimize HTML: Minimize the use of inline CSS and JavaScript, and remove unnecessary code.
Use Text Wisely: Keep your email content concise and to the point to avoid unnecessary bulk.
Impact on Email Engagement
Smaller, well-optimized emails can lead to better
email engagement. Faster loading times and a cleaner layout improve the user experience, making it more likely that recipients will read and interact with your content. This can lead to higher
conversion rates and better overall performance of your email marketing efforts.
Conclusion
Understanding and managing email size limits is crucial for successful email marketing. By adhering to the size constraints of various ESPs and employing strategies to reduce email size, you can improve deliverability, enhance user experience, and boost engagement. Always test your emails before sending them to ensure they meet the necessary criteria and provide the best possible experience for your recipients.