Thanks That was the clue I was needing. I had to explicitly set mynetworks on the guest OS.
seemed to fix it.
On Nov 6, 2011, at 11:17 AM, Wietse Venema wrote:
[root@guestServer init.d]# telnet fileserver 25
Connected to fileserver.
Escape character is '^]'.
220 fileserver.test.org ESMTP Postfix
You can make ONE SINGLE connection.
I get the following when trying to send mail.
Nov 6 09:44:41 guestServer postfix/qmgr: DD94E63D92: from=<root@...>, size=464, nrcpt=1 (queue active)
Nov 6 09:44:41 guestServer postfix/error: DD94E63D92: to=<blair@...>, orig_to=<blair@fileserver>, relay=none, delay=553, delays=553/0.01/0/0.31, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to fileserver.test.org192.168.1.31]:25: Connection timed out)
Postfix can't make MULTIPLE connections. The message "delivery
temporarily suspended" means that not just one connection failed,
but that a whole sequence of them failed.
You have to find out if there is a traffic shaper on the SMTP client,
on the remote SMTP server, in the hypervisor, or in the host under
Otherwise, you can only make one SMTP connection at a time.
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