[cobalt-users] Smpt claims to be Down but isn't

[John MacDonald <jmacdonald@xxxxxxxxxxxxxxx>]

>>  I have the same problem. Changed sendmail.cf
>>  to add spam blocking lists. 
>>  Now every once in a while active monitor
>>  will complain that SMTP is down 
>>  when it isn't.
>>  I've learned to just ignore it.  I think
>>  what might be happening is that 
>>  active monitor tries to connect to sendmail
>>  with 127.0.0.1 IP, and sendmail 
>>  does a blacklist lookup on that IP,  if the
>>  lookup takes too long, or times 
>>  out or something, active monitor complains
>>  that smtp is down.  Just my guess.

>>  Brian

Thanks for the reply Brian, makes  me feel
a little better about my decision to leave it 
running as is this week.  I've (also) noticed that
the message usually occurs afer some sort of 
localhost error in the logs.  The hosts file should
take care of the lookup on that IP though.  I had a couple of internal IPs that weren't registered on
the internet and and was getting a "gethostbyaddress"
lookup failure.  I thought this might be causing my
problems and so I added these IPs to the hosts
and the error went away in the maillog, but not
the complaints by active monitor.  

John