Deliverability - making sure your email doesn't look like spam
Reading and acting on the advice below will reduce the number of emails getting caught by spam filters and will more email anre actually delivered to your subscribers inboxes.
Image sizes Don't use images over 600px wide. You can change the size after you've added it to the email.
Guidance on adding images is here.
Private data embeded in links VERY IMPORTANT - don't use links that you've copied out of other emails. Links from Action Network emails contain tracking links and people's personal Action Network ID's etc. You will get an error message if you do this of "You appear to have a link with an Action Network ID attached" - read details of this error message.
Extra guidance can be read in the AN Deliverability Guide