[CentOS] Configuring sendmail in a corporate environment
Neil Cherry
ncherry at linuxha.com
Tue Jul 1 13:57:58 UTC 2008
Alfred von Campe wrote:
> I have a stock CentOS 5 system as far as email (sendmail) is concerned
> that is on our corporate LAN. I am not trying to set up a mail server;
> I merely want our CentOS systems to be able to send out emails. This
> works as long as the recipient's domain is our local domain. Any email
> send to recipients that are not in our local domain get stuck in the queue:
>
> # mailq
> /var/spool/mqueue (2 requests)
> -----Q-ID----- --Size-- -----Q-Time-----
> ------------Sender/Recipient-----------
> m61D6wC1029257 16 Tue Jul 1 09:06 <XXXX at XXXX.XXXX.com>
> (Deferred: Connection timed out with mx2.emailsrvr.com.)
> <alfred at von-campe.com>
>
> It appears that our firewall is not allowing connection to outside MX
> hosts. I think I need to configure sendmail to forward emails to our
> local smtp host, but I am not sure how to do that.
In my write up of using sendmail with gmail I think I explain how
to rewrite the from. If it's not there then look at the Sendmail/
Comcast write up:
http://www.linuxha.com/other/sendmail/gmail.html
I had to rewrite the from as being from gmail.com in order for
gmail.com to accept the mail.
--
Linux Home Automation Neil Cherry ncherry at linuxha.com
http://www.linuxha.com/ Main site
http://linuxha.blogspot.com/ My HA Blog
Author of: Linux Smart Homes For Dummies
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