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Groupwise sees Scalix server as a mail relay

Posted: Thu Sep 07, 2006 6:46 am
by brianhig
I work as a network manager at a Further Education college in Glasgow,Scotland. This year we want to give each of our students their own email account. We currently use GroupWise 7 for staff email but we want to keep all the student accounts on a separate email system. After looking around we settled on Scalix. It seemed so easy to install and set up.

Our students use the domain "ccol.ac.uk" and the staff "central-glasgow.ac.uk". From a student account I can send and receive email to and from external systems such as Gmail and Hotmail. I can send email to staff accounts on GroupWise. The only problem I am having is sending email from GroupWise to Scalix.When I send an email I get back:

The message that you sent was undeliverable to the following:
testuser@ccol.ac.uk (550 Relaying denied)


Both servers are on a NATed network (10.40.0.0/24) behind a BorderManager firewall. We use CopperFasten (a mail filtering solution build upon Span Assassin and Clam Antivirus) to filter out junk and clean out viruses and forward email to the correct server. We have both internal and external DNS servers and I have removed all references to MX records from the internal DNS servers.

Tie is running out for us as we are about to create all the network accounts for our newly enrolled students next week. Any help in solving this problem will be greatly appreciated.

Re: Groupwise sees Scalix server as a mail relay

Posted: Thu Sep 07, 2006 11:11 am
by btisdall
brianhig wrote:When I send an email I get back:

The message that you sent was undeliverable to the following:
testuser@ccol.ac.uk (550 Relaying denied)




Obvious question but is the reject definitely from the Scalix box?

If you telnet to the Scalix box is it the SMTP relay that's listening or sendmail?

Posted: Fri Sep 08, 2006 10:26 am
by brianhig
When I telnet to the scalix server I get:

Code: Select all

[brian@agblin003 brian]$ telnet 10.40.6.15 25
Trying 10.40.6.15...
Connected to 10.40.6.15 (10.40.6.15).
Escape character is '^]'.
220 mailstudent.ccol.ac.uk ESMTP Scalix SMTP Relay 10.0.1.3; Fri, 08 Sep 2006 15:22:09 +0100 (BST)


The rejected email comes from the Groupwise Mailer-Daemon.

Posted: Fri Sep 08, 2006 10:53 am
by btisdall
From the same host as you used in your last post can you have a conversation with the SMTP relay & successfully submit a mail to testuser?

Posted: Fri Sep 08, 2006 1:53 pm
by ScalixSupport
Try adding a

RELAY accept ipaddress_of_groupwise server

line to your /var/opt/scalix/sys/smtpd.cfg file. Be sure to add this above any relay reject line. You will have to restart smtpd with

omoff -d0 -w smtpd
omon smtpd

Regards,
Don

Posted: Mon Sep 11, 2006 7:29 am
by brianhig
Don

Thanks for your help and suggestions. I found the answer,. GroupWise has a route.cfg file that was pointing to the ccol.ac.uk domain. Once I removed the reference to ccol.ac.uk it started working.