Email rejections due to DMARC

[makaiguy]

Originally Posted by Avensen

I had to change

PHP Code:

Reply-to:{$vbulletin->userinfo['email'] 


to

PHP Code:

Reply-To: {$vbulletin->userinfo['email'] 


to make it RFC compliant and get it working with some e-mail provider.

Changes are: the capital T in Reply-To: and added space after Reply-To:

Thanks. That might explain the RFC Compliance problem mentioned in post 22.

I've edited the original post with these changes.

[viper357]

Originally Posted by makaiguy

Here's my hack to sendmessage.php. This is for vB3.8.7 - don't know if there have been syntax changes in later versions. The keys here are the 5th and 6th parameters passed to vbmail().

In my vB 3.8.7 vbmail() is called three times in sendmessage.php.

1. First time is for ContactUs mails. I don't currently have any trouble with these, probably because MY server isn't making DMARC/Sender-ID checks on incoming mail. Or maybe it's just that, even though it has the sender's email shown as From, in reality it is going from and to the same server (??).

Originally Posted by Avensen

I had to change

PHP Code:

Reply-to:{$vbulletin->userinfo['email'] 


to

PHP Code:

Reply-To: {$vbulletin->userinfo['email'] 


to make it RFC compliant and get it working with some e-mail provider.

Changes are: the capital T in Reply-To: and added space after Reply-To:

Thanks guys, just to confirm that this is working well for the Contact Us form in 4.2.3 PL2 :up::up::up:

[Don Z.]

Originally Posted by makaiguy

Here's my hack to sendmessage.php. This is for vB3.8.7 - don't know if there have been syntax changes in later versions.

This also works great on 3.8.11. I'm surprised this change wasn't in this newest (and maybe last) version of VB3.

[Paul M]

Originally Posted by Don Z.

I'm surprised this change wasn't in this newest (and maybe last) version of VB3.

No one logged it in Jira.

[alfreema]

Had this exact issue when pushing emails through Office 365. This hack gets it working in vb5 5.4.5, but does not have the Reply-to because I didn't want to mess with figuring that out. So it sends and receives as the same user that you define, but the message body still has the user's email address .

In this file: ./core/vb/api/contactus.php

Replace:

PHP Code:


$flood = vB_Mail::vbmail($destemail, $mailcontent['subject'], $mailcontent['message'], true, $maildata['email']); 


With:

PHP Code:


$flood = vB_Mail::vbmail($destemail, $mailcontent['subject'], $mailcontent['message'], true, $destemail); 


[aciurczak]

Cleaned up the spf/dkim/dmarc behavior of my forums recently, and this same issue cropped up with the contact us links. The fix posted in this thread still works fine - and the emails are now coming through just fine once again.