Sendmail local domain is hosted externally e-mail fails :(

Question

I have sendmail which works great sending to external domains, but for its own internal domain it tries to deliver mail locally instead of externally based on the MX records. Is there a way to fix this?

I have looked at other posts, but haven't been able to figure it out.

Do you run a DNS server locally? And do you have an MX record local and with ISP? — Seth, Feb 22 '11 at 21:10
Possible duplicate of [Sendmail : ignore local delivery](https://serverfault.com/questions/239261/sendmail-ignore-local-delivery) — squarecandy, May 09 '17 at 16:17

score 0 · Accepted Answer · answered Feb 22 '11 at 21:32

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I think you may benefit from "nullclient" configuration of sendmail. Just put the following in your /etc/mail/sendmail.mc:

include(`/usr/share/sendmail-cf/m4/cf.m4')dnl
VERSIONID(`nullclient setup')dnl
OSTYPE(`linux')dnl
FEATURE(`nullclient',`your.mail.server.address.or.name')dnl

It will forward everything to an external mail server except mail addressed to 'root' (at least this is how it works on Centos).

answered Feb 22 '11 at 21:32

dtoubelis

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This didn't work for me on Ubuntu – Chris Muench Feb 23 '11 at 20:15

score 0 · Answer 2 · answered Feb 22 '11 at 21:46

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Just a wild guess, maybe the domainame is in the /etc/mail/local-host-names file? and thus gets interpreted local.

answered Feb 22 '11 at 21:46

mdpc

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I tried that too, I removed the domain and it didn't work – Chris Muench Feb 23 '11 at 20:15

score 0 · Answer 3 · edited Apr 13 '17 at 12:13

0

I just answered this in another question.

edited Apr 13 '17 at 12:13

Community

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answered Mar 03 '11 at 15:00

adamo

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Maybe it should be converted to a comment, but it is in-network linking. – chicks Apr 13 '17 at 15:04

Sendmail local domain is hosted externally e-mail fails :(

3 Answers3