:::. Sendmail on FreeBSD -> Deferred: Operation timed out with <server>

[Kevin Kinsey]

Mikhail Goriachev wrote:
> Giorgos Keramidas wrote:
>> On 2006-05-20 02:20, Mikhail Goriachev <mikhailg at webanoide.org> wrote:
>>> Hi,
>>>
>>> Sendmail and I aren't getting along well. I got this FreeBSD
>>> 6.0-RELEASE-p7 box doing SMTP work for me. Everything is fine, but a few
>>> domains give me headaches with "Deferred: Operation timed out with
>>> <server here>" errors. One domain in particular I'm trying to get to
>>> work is hospitaldeninos.cl
>>>
>>> $ host hospitaldeninos.cl
>>> hospitaldeninos.cl has address 200.31.44.1
>>> mail is handled by 4 nt_sql_server2.hospitaldeninos.cl.
>>> mail is handled by 5 mail.hospitaldeninos.cl.
>>>
>>> Whenever I try to send anything to that domain I just get the following
>>> in my logs:
>>>
>>> [...] delay=01:00:57, xdelay=00:01:15, mailer=esmtp, pri=210425,
>>> relay=mail.hospitaldeninos.cl. [200.29.150.146], dsn=4.0.0,
>>> stat=Deferred: Operation timed out with mail.hospitaldeninos.cl.
>> For some reason, your Sendmail setup tries to find out the IP address of
>> the MX for `hospitaldeninos.cl' and it resolves this to the wrong mail
>> server:
>>
>>     mail.hospitaldeninos.cl
>>
>> This would tend to work fine, as long as either one of the two MX hosts
>> of the domain accepted email, but there are also problems connecting to
>> the `mail.hospitaldeninos.cl:SMTP' service too.
>>

Don't know if this helps at all, but here's something
that I can't fully explain (and found interesting).

[admin at foobar][~]
host hospitaldeninos.cl
hospitaldeninos.cl has address 200.31.44.1
hospitaldeninos.cl mail is handled by 4 nt_sql_server2.hospitaldeninos.cl.
hospitaldeninos.cl mail is handled by 5 mail.hospitaldeninos.cl.
 
          [admin at foobar][~]
telnet mail.hospitaldeninos.cl 25
Trying 200.29.150.146...
telnet: connect to address 200.29.150.146: Operation timed out
telnet: Unable to connect to remote host
 
          [admin at foobar][~]
telnet nt_sql_server2.hospitaldeninos.cl 25
nt_sql_server2.hospitaldeninos.cl: Non-recoverable failure in name 
resolution
 
          [admin at foobar][~]
host nt_sql_server2.hospitaldeninos.cl
nt_sql_server2.hospitaldeninos.cl has address 200.29.150.147

And that's a cut-n-paste, so whassup with DNS in re: this
NT_SQL server?

If I knew that, I could maybe help Mikhail... but:


 >> What do the following files contain in the FreeBSD system that fails to
 >> resolve the MX records correctly?
 >>

Could be the records themselves; `dig hospitaldeninos.cl`
returns no MX records....

Kevin Kinsey