CiviCRM Community Forums (archive)

On Friday Yahoo Flipped a Switch and pretty much told large mail handlers that if the from is @yahoo.com and you are not using a yahoo mail server (your servers mail() ) or a third party service -- the mail you send may not be getting to your recipients

A friend of mine from my days in the mail business wrote a pretty good explanation here https://wordtothewise.com/2014/04/brief-dmarc-primer/

It is my hope that this does not impact too many on this list (as the reply to should be from the true domain not yahoo.com) but I have seen enough pain on some listserves that I monitor.

Please feel free to post or move to wherever would be must helpful to the community

josh