E-Mail delivery improvements
In regards of getting emails to inboxes instead of getting rejected or put into the spam folder a few improvements can be made:
-
publish DMARC policy -
delivery reports for administrators, currently it requires some effort to notice emails getting rejected; for example an excerpt from mail.err? -
ratelimiting even for authenticated user to prevent sending spam from compromised accounts -
prevent regular users from using a forged email address
Edited by David