[SOLVED] Mail failing for servers with no A record

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timwiel
Posts: 39
Joined: Fri Sep 12, 2014 10:30 pm

[SOLVED] Mail failing for servers with no A record

Postby timwiel » Mon Feb 25, 2008 9:07 pm

ZCS: zcs-5.0.2_GA_1975.UBUNTU6.20080130235804

os: ubuntu 6.06LTS
I am having problems with postfix not sending emails from the zimbra server to any server with no A record.
Examples of such servers can be accessed via:


dig stonebow.otago.ac.nz

dig stonebow.otago.ac.nz MX

dig otagodhb.govt.nz

dig otagodhb.govt.nz MX


An example of a server that works sending email is:


dig hotmail.com

dig hotmail.com MX


I have DNS lookups in the server tab unchecked
Any ideas


bdial
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[SOLVED] Mail failing for servers with no A record

Postby bdial » Mon Feb 25, 2008 10:01 pm

turning off dns lookup is whats causing your problem. turn it back on.
timwiel
Posts: 39
Joined: Fri Sep 12, 2014 10:30 pm

[SOLVED] Mail failing for servers with no A record

Postby timwiel » Tue Feb 26, 2008 2:16 am

that did fix it - I turned it off a few days ago because the mta couldn't connect to itself to deliver the messages to the inbox - doesn't seem to be a problem now - not sure how I fixed that but at least the mail is sending out
Bill Brock
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Posts: 618
Joined: Fri Sep 12, 2014 10:35 pm

[SOLVED] Mail failing for servers with no A record

Postby Bill Brock » Tue Feb 26, 2008 7:07 am

DNS checking blocks a lot of spam. I have simply chosen to leave it on and contact the admins of improperly configured servers (or DNS thereof).
If someone puts a mail server up they should take the responsibility to learn to do it right.

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