I don't know what triggered this, but mosaico is appending
Sample Header for HTML formatted content.
at the top of each message and
Sample Footer for HTML formatted content Unsubscribe Address Info
I know I can disable this on traditional CiviMail emails but how can i disable this with mosaico emails.
Edit: Disabling header and footer in admin Headers, Footers, and Automated Messages makes no difference.
Edit: I have Mosaico Message Templates & Pretty Workflow Messages installed but this was fine before and disabling both make no difference.
Edit 2: I rebuilt the template and email from scratch and the problem seems to have resolved itself. Very strange.
Its faint to see, but see message.