[CS-FSLUG] using postfix or sendmail to send mail

Frank Bax fbax at sympatico.ca
Fri Mar 13 07:40:52 CDT 2009

David McGlone wrote:
> On Thursday 12 March 2009 9:30:45 am Frank Bax wrote:
>> David McGlone wrote:
>>> My only problem is I can't seem to figure out how to set up SMTP to send
>>> to address' other than the local ones. I can send to david at buddy using
>>> sendmail, but I can't send to david at att.net.
>> What's in the log files?
> Which log files?
> Here's the mail.log
> Mar 13 06:34:56 buddy postfix/pickup[10201]: AE8FFEA003: uid=1000 
> from=<david at dmcentral.net>
> Mar 13 06:34:56 buddy postfix/cleanup[10572]: AE8FFEA003: message-
> id=<200903130634.56510.david at dmcentral.net>
> Mar 13 06:34:56 buddy postfix/qmgr[10202]: AE8FFEA003: 
> from=<david at dmcentral.net>, size=544, nrcpt=1 (queue active)
> Mar 13 06:35:26 buddy postfix/smtp[10574]: connect to scc-
> mailrelay.att.net[]:25: Connection timed out
> I see it's trying to relay the mail through AT&T. Does this mean it's trying 
> to send the mail through AT&T? I'm trying to send though dmcentral.net not 
> AT&T.

It also says that postfix is trying to make the connection; not sendmail 
as you suggested in your first email.  I have sendmail working on 
OpenBSD with static ip that does some domain hosting.  This machine is 
co-locate with no annoying ISP to get in the way either.  I once had my 
backup server at home to do hardware repairs and I could not get 
sendmail working (except inside box only) in the few hours I had to play 
with it.  I don't have any other experience with it.  I've never used 

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