Connection refused

[Alex Neuman van der Hans]

Darryl DeLao wrote:
> There is no indication in the logs that something is wrong.  I can not
> telnet to the server, and when I flush out my other mail server, which has
> messages qued up, it says connection deferred, not accepting connections.
> There is no firewall running on the server itself.
> 
> 
> 
> -----Original Message-----
> From: mailscanner-bounces at lists.mailscanner.info
> [mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf Of Alex Neuman
> van der Hans
> Sent: Tuesday, January 24, 2006 9:19 AM
> To: MailScanner discussion
> Subject: Re: Connection refused
> 
>>>> It was working fine yesterday, but now connections are no longer 
>>>> allowed.
> 
> Exactly *what* do you mean by connections are no longer allowed? Do you 
> mean that if you, say, "telnet yourmailserver.com 25" you get a message 
> saying "Connection not allowed"?
> 
>>>> Everything is being deferred.  Any ideas?
> 
> Exactly *what* do you mean by everything is being deferred? Do you mean 
> that if you, for example, check /var/log/maillog, you get something like:
> 
> Jan 24 10:16:05 yourmailserver sendmail[22098]: k0OFFoEd022891: 
> from=<whoever at whatever.com>, size=0, class=0, nrcpts=0, proto=SMTP, 
> daemon=MTA-v6, relay=... never mind, I'm deferring everything! MWAHAHAHAH!!!
> 
> 
> 

Ok, so your server is not actually deferring anything, it's your *other* 
server that's deferring since the main server isn't accepting connections.

So... Can you physically access the server? If you can, can you do a 
"telnet localhost 25"? If you can, you may have a default sendmail.mc -> 
sendmail.cf set to only listen on the 127.0.0.1 interface.

-- 

Alex Neuman van der Hans
N&K Technology Consultants
Tel. +507 214-9002 - http://nkpanama.com/