[makaiguy]

Originally Posted by pattycake

I have done a LOT of researching on this.

...

To confirm, on your next "bounced email", go look at the headers, specifically the FROM. If the entire "from" shows ANYTHING except your mail server, it will fail DMARC.

btw: AOL and gmail have both started using this "standard".

-pat-

Thanks, Pat, I've found the same. It may not exactly be DMARC causing the rejection, but an additional Sender-ID check being run by more and more servers -- not sure if this is part of DMARC or something separate, but no matter, it causes rejections either way.

I'm testing a hack of sendmessage.php right now that sends these user-generated messages with the default bbs address in the "From" field, and with the sending user's email address in an additional "Reply-to" header. This way the message should pass the Sender-ID test (the From address is on the sending server) but the recipient can still reply to the actual sender thanks to the Reply-to header.

Test messages I've sent via my test board to one of my other email addresses show the headers to be getting sent the way I want. Don't know yet if this really solves the problem when sending to gmail, yahoo, etc.