The vast majority of our emails sent by MT are not being delivered because MT is not setting the Return-Path header in sendmail. All of my messages' headers are set to anonymous@host.com (real hostname redacted) instead of a real address. This causes SPF to fail for the messages and so a good number of ISPs reject the messages.
Is there any way to set this header via MT? I have my default email address set in BOTH my config file and in the System Overview > General Settings.
Please advise.
Reported on Movable Type 4.2
I fixed this by hard-coding a Return-Path in Mail.pm. This is NOT an optimal solution. MT should be setting a Return-Path header at all times and not letting sendmail set it by default.
I'm going to file this as a bug.
Weird. I just checked the raw headers for a comment alert email sent to me, and "anonymous" wasn't in any of them. If you're having this problem with notifications, it's possibly a bug with MT-Notifier.
I don't have MT-Notifier installed. This is a core MT bug as I fixed it in the MT core files by adding a single line of code.
Every server installation is different. MY sendmail installation defaults to anonymous@domain.com if the Return-Path header isn't set. That doesn't mean that all systems are setup this way.
Also, if you are using SMTP rather than sendmail, you will have different results.
I filed the bug. MT should handle all use-cases in this new spam-laden world where email providers are being overly harsh on emails with even the slightest problems.