I am having some email issues with my installation of ispconfig 2.2.25. If I send an email to any of my users on any of my domains, the email obviously reaches the server but I then get an error message returned from my server.
I know this has to be a simple config error, almost certainly on my part, but I really want to get this sorted out please.
This is what I get from the server.
This is the mail system at host cpc2-norw3-0-0-cust15.
I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to postmaster.
If you do so, please include this problem report. You can
delete your own text from the attached returned message.
The mail system
<email@example.com> (expanded from
<firstname.lastname@example.org>): Host or domain name not found. Name
service error for name=cpc2-norw3-0-0-cust15.localdomain type=A: Host not
Reporting-MTA: dns; cpc2-norw3-0-0-cust15
X-Postfix-Sender: rfc822; email@example.com
Arrival-Date: Tue, 7 Apr 2009 11:02:58 퍝㐅Ⓟ詶ꕅ꘧Ꞷ럜끹뺭蚊垠誉?춧ꊼ㟓䜮닝禖蜚闚♪⧎긨⊝ꥑ秈ꦉ: rfc822;firstname.lastname@example.org
Diagnostic-Code: X-Postfix; Host or domain name not found. Name service error
for name=cpc2-norw3-0-0-cust15.localdomain type=A: Host not found
Any help or pointers in the right direction would be greatly appreciated.