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Re: Sendmail problem



Irving, Dave wrote:
Hi,

I've set up a linux box to use at work, and Im having a little problem
with sending mail.
I have a standard FC3 install and am currently using DHCP to obtain an
IP address.
If I try to send an outgoing mail (e.g, echo "test" | mail
irvingd addr com) , it seems to be accepted, but is never delivered.
Here's the corresponding entries from my maillog:

Apr 19 09:48:37 nebular sendmail[4678]: j3J8mWUd004678: from=irvingd,
size=44, class=0, nrcpts=1,
msgid=<200504190848 j3J8mWUd004678 localhost localdomain>,
relay=irvingd localhost
Apr 19 09:48:37 nebular sendmail[4679]: j3J8mbQj004679:
from=<irvingd localhost localdomain>, size=355, class=0, nrcpts=1,
msgid=<200504190848 j3J8mWUd004678 localhost localdomain>, proto=ESMTP,
daemon=MTA, relay=localhost.localdomain [127.0.0.1]
Apr 19 09:48:37 nebular sendmail[4678]: j3J8mWUd004678:
to=irvingd addr com, ctladdr=irvingd (500/500), delay=00:00:05,
xdelay=00:00:00, mailer=relay, pri=30044, relay=[127.0.0.1] [127.0.0.1],
dsn=2.0.0, stat=Sent (j3J8mbQj004679 Message accepted for delivery)
Apr 19 09:48:37 nebular sendmail[4681]: j3J8mbQj004679:
to=<irvingd addr com>, ctladdr=<irvingd localhost localdomain>
(500/500), delay=00:00:00, xdelay=00:00:00, mailer=esmtp, pri=120355,
relay=mail36.messagelabs.com. [193.109.254.211], dsn=2.0.0, stat=Sent
(ok 1113900730 qp 20015
server-13.tower-36.messagelabs.com!1113900729!16302711!1)

I suppose the odd thing here is the "irvingd localhost localdomain".
I can send successfully from another linux box, the logs are pretty much
identical (and the message is delivered). The only difference is that
the from address has the full box address
(from=<irvingd somebox co uk>).

Could this be the reason why mail isn't going through?

Yes. There have been a few threads on this exact issue this week. Most mail servers will not accept mail from unresolvable domains like localhost.localdomain.


Can anyone help me with any config changes I need to change to get
outgoing mail working?

Make sure you have the sendmail-cf package installed and then look up "masquerading" in /usr/share/sendmail-cf/README


Paul.


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