Outgoing email

I've had an OTRS box running since Jan. 2, and it's been working beautifully for replying to company internal tickets (ie. email sent within our network).
PROBLEM: I am unable to send messages out to the internet. Messages within our network work fine.
Last week, I had an instance where we had to reply to a ticket to a customer outside our corporate network. This morning (4 days later) I received two bounce backs on messages I thought had been sent last week.

Here's the message text files attached to the message in OTRS (actual email addresses redacted):

Reporting-MTA: dns; PGC-SRV-OTRS
X-Postfix-Queue-ID: A99457801
X-Postfix-Sender: rfc822; 
Arrival-Date: Tue,  8 Jan 2008 10:41:42 -0800 (PST)

Final-Recipient: rfc822; **redacted.email@address.com**
Action: failed
Status: 4.0.0
Diagnostic-Code: X-Postfix; connect to bkmx.messagescreen.com[207.154.15.61]:
    Connection refused

Final-Recipient: rfc822; **redacted.email@address.com**
Action: failed
Status: 4.0.0
Diagnostic-Code: X-Postfix; connect to bkmx.messagescreen.com[207.154.15.61]:
    Connection refused

This is the Postfix program at host PGC-SRV-OTRS.

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 Postfix program

<**redacted.email@address.com**>: connect to bkmx.messagescreen.com[207.154.15.61]:
    Connection refused

<**redacted.email@address.com**>: connect to bkmx.messagescreen.com[207.154.15.61]:
    Connection refused

I thought it might be a problem with the postfix mail program, so I added our domain to the /etc/postfix/main.cf with this:

myhostname = otrs.pcb.ca

Didn't seem to make a difference.

I need this resolved ASAP please.

Outgoing email

Hi,
There are many factors that contribute to an email being accepted or not, many of those are external to the JumpBox itself. Lets see if we can weed out some of the common problems.

First, off, does email deliver to ANY other external recipient? Some mail servers are configured more stringently than others.

Second, have you made any other changes to the postfix configuration? If you haven't already configured it to use an SMTP relay either provided by your company or by your ISP that would be a good place to start. Check out my comment here on this SMTP Settings thread.

Oh, and actually, looking at the hostname that this message is destined for, "messagescreen.com", they are doing some very restrictive spam prevention measures. Other email addresses are likely to work better and if you can set a valid SMTP relay as mentioned above, you will probably resolve this.

Austin

Austin, you're a miracle worker

That SMTP settings was exactly what I needed to send messages externally.

Brian.

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