Emails sent from/to domains in the same host being rejected by SPF

[squaredd]

This issue is driving me nuts.

Let's put it in context.

In my WHM I have domain A and B (both with DKIM and SPF on)
When a user from domain A sends an email to user in domain B the email never leaves the server, it is delivered internally. In this case the sender IP in the email header is the IP of the connection of the user. (usally a DSL with dynamic IP).

The problem is that the SPF is detecting that IP as not valid and rejects the email.

Is there any way to avoid SPF checks on email sent between domains in the same host? Or could be possible to rewrite the email IP headers? Any other idea/solution?

Thank you

 

[cPanelMichael]

Hello

To clarify, is that same email delivered successfully went sent out to a remote server with SPF checking? What's the output of the failure in /var/log/exim_mainlog?

Thank you.

 

[squaredd]

Hello

To clarify, is that same email delivered successfully went sent out to a remote server with SPF checking? What's the output of the failure in /var/log/exim_mainlog?

Thank you.

Hello Michael,

Yes, the same email sent to a remote server with SPF enabled is delivered correctly.

Here is the exim_mainlog of an email sent between domains in the same host.

2014-05-28 17:00:56 H=xxx.red-88-12-45.staticip.rima-tde.net (remote.xxxead.com) [88.12.45.xxx]:29192 F=<[email protected]> rejected RCPT <[email protected]>: SPF: 88.12.45.xxx is not allowed to send mail from xxxead.com

TY

 

[cPanelMichael]

Please open a support ticket so we can take a closer look. You can post the ticket number here so we can update this thread with the outcome.

Thanks.