Module 4: Email
Aim for an overall email size of 100KB. The closer your email is to this recommended size, the more likely it’ll be accepted by receiving servers. Aim for a balanced image-to-text ratio; this is best practice. Most servers can’t ‘read’ images or identify what they contain, so receiving servers may interpret emails consisting only (or mostly) of images as spam. A balanced HTML email is more likely to be delivered.
Any email in our system that’s over 350KB will only send to contacts for 20 minutes every hour.
If your email is very long, some platforms may cut it short and add a link to “view entire message”. This will direct contacts to the online version of your email.