EXIM using old hostname for HELO

Hello,

I am having a problem with Exim. I recently changed my hostname from server1.olddomain.com to server.newdomain.com within the DirectAdmin Admin Panel. Everything is working correctly following the change. I am using SPF and DKIM and have no issues with that either.

However, when I send any emails, the HELO is incorrect when viewing the original message and is still using the old hostname:

Code:

Received: from [::1] (helo=server1.olddomain) by server.newdomain.com with esmtpa (Exim 4.87)

I have changed primary_hostname to primary_hostname = server.newdomain.com in etc/exim.conf (and removed the # so it is not a comment).

Where is Exim getting the information for HELO from? Does anyone know how I can fix this?

The ::1 looks to be pointing to ipv6.

Check your hostname by SSH and /etc/hosts if it's correct there.

Thanks for the reply Richard.

I checked and it looks like this, which I am assuming looks correct as it has the new domain there:

Code:

# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost localhost4.localdomain4 localhost4
# Auto-generated hostname. Please do not remove this comment.
199.180.131.3 server.newddomain.com server
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

You're welcome Biv.

As for the hosts file, no it doesn't look correct.
I've read somewhere on the forums that only 127.0.0.1 should be named localhost and/or localhost.localdomain.
You should remove the localhost and localhost.localdomain statements from the ::1 line because that will give issues with Exim.

Ah... found it here:
http://forum.directadmin.com/showthread.php?t=53299

Hmm, I made those changes in /etc/hosts and it just changed ::1 to 127.0.0.1 in the Received from of the email, and the old hostname is still in there:

Before:

Code:

Received: from [::1] (helo=server1.olddomain) by server.newdomain.com with esmtpa (Exim 4.87)

After:

Code:

Received: from [127.0.0.1] (helo=server1.olddomain.com) by server.newddomain.com with esmtpa (Exim 4.87)

Any other ideas?