5
Best Practices for email templates
When designing email templates, keep in mind that you’re sending to a wide variety of recipients,
and you want your message to get into the most inboxes possible (not to be trapped by spam filters),
and to look good to the most people when it gets there, so that they can and will read it. Once they
have read it, you want to point them smoothly to the action you want them to perform.
Template Contents and Design
Grab Them in the Subject Line: Pay special attention to the subject line of your email, since that may
be all of it that your contacts see at first. Customize the subject line to be relevant to your call to
action, and have a personal connection to the contact. Use the keyword in your subject line if
possible to make to personalize your appeal.This will help to improve the delivery rate of your
campaign and reduce the rate at which it gets trapped in spam filters.
Keep it compact: many emails come back undeliverable due to size restrictions by the recipients’
servers. To maximize successful delivery, try to keep the whole email size (including attachment, if
any) within 5 MB. Ideally, Email contents for email marketing should be less than 1 MB.
Image-to-Text ratio: A 60/40 text to image ratio should be maintained for best results. Recipients are
less engaged with long, text-heavy emails, and lots of text can prevent them from easily seeing and
heeding your call to action. Image file sizes need to be considered because a mobile device will not
load images as fast as a desktop or laptop. Large images in your template and large attachments will
impact the email’s size, and therefore the delivery success rate of your campaign. Try to keep the
size of each image at 20k or less. Do not use Flash or gif animations - they won't work and just add
to the overall file size of the email.
Recommended image sizes for email templates:
• Banner image width - 600px
• Image size for one column - 574px
• Image size for two column - 274px
• Image size for three column - 174px
• Recommended file size - below 1mb (not more than 5mb)
• Recommended file resolution - 72 PPI
• Color mode - RGB
• File Type - JPG, PNG
Optimize your calls-to-action (CTAs) - In the email content, there should be very specific and limited
"Call to Action" links or buttons. Emails containing more links are often marked as spam based on
recipient server spam filter settings.
Keywords: using keywords can give your email a personal touch, but for large campaigns they can
also slow down the delivery rate of emails. Use fewer keywords based on email content ratio, and
your campaigns will be sent at a faster rate.
Alt tag usage - Alt tags are snippets of text related to an individual image that are commonly used in
email so that before an image loads, the user has an idea of what the image is, what the offer might
be, or the overall theme of the email. You can define alt text in the template using the editor.