Can't Send External Mail

[robspierre]

We cannot seem to send mail to external addresses after upgrading from 11.0 to 11.2 on SLES9.

It appears that sendmail is running.

mobsx01:/ # lsof -i :25
COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME
sendmail 6236 root 4u IPv4 12593 TCP localhost:smtp (LISTEN)

And if we use do the following, the mail gets there just fine.

mobsx01:/ # echo "Subject: Testing" | /usr/lib/sendmail -v myemail@hotmail.com
myemail@hotmail.com... Connecting to [127.0.0.1] via relay...
220 mobsx01.bbbind.com ESMTP Sendmail 8.12.11.20060308/8.12.11/SuSE Linux 0.7; Tue, 20 Nov 2007 20:36:35 -0600
>>> EHLO mobsx01.bbbind.com
250-mobsx01.bbbind.com Hello localhost [127.0.0.1], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE
250-DSN
250-ETRN
250-AUTH DIGEST-MD5 CRAM-MD5
250-DELIVERBY
250 HELP
>>> MAIL From:<root@mobsx01.bbbind.com> SIZE=17 AUTH=root@mobsx01.bbbind.com
250 2.1.0 <root@mobsx01.bbbind.com>... Sender ok
>>> RCPT To:<myemail@hotmail.com>
>>> DATA
250 2.1.5 <myemail@hotmail.com>... Recipient ok
354 Enter mail, end with "." on a line by itself
>>> .
250 2.0.0 lAL2aZ1b007428 Message accepted for delivery
myemail@hotmail.com... Sent (lAL2aZ1b007428 Message accepted for delivery)
Closing connection to [127.0.0.1]
>>> QUIT
221 2.0.0 mobsx01.bbbind.com closing connection

But if we try to send from Scalix, no such luck. There is nothing in mailq either. Outbound mails sent from Scalix just seem to go nowhere. Any help would be appreciated.

[robspierre]

We were able to resolve this issue, so I thought I would share the resolution with the rest of the forum. After hacking around SAC, we found that we had 77 mails (all with dates of August 2007) in the Internet Mail Gateway queue. Though I indicated in the previous post that we were unable to send outbound mail entirey, that turned out not to be true. We were able to send outbound mail to external e-mail addresses, but it was taking upwards of 2.5 hours for the mail to leave the Scalix server. At any rate, we deleted the 77 "hung" messages from the Internet Mail Gateway queue and voila.....all of the sudden e-mails started flowing outbound brilliantly once again.

Messages built up in the Internet Mail Gateway queue bogging down the normal message flow. Deleted all of the messages in the Internet Mail Gateway queue. Problem solved.