On Thu, 29 Aug 2002, Ganeshh wrote:

> Please let me know where is the problem? I dont have problem
> any other domains sending mails to my mail server.

well ... it is not conformant the the RFC which defines in
part the protocol compliant mail exchange in this circumstance

> MX=[mail.ns.net] {61.11.74.7}
>  Attempting SMTP connection to [61.11.74.7 : 25]
>  Waiting for socket connection...
>  Socket connection established
>  Waiting for protocol initiation...
>  30 second wait for protocol timeout exceeded.

ummm, RFC 2821 suggests 5 minutes at section 4.5.3.2
   http://asg.web.cmu.edu/rfc/rfc2821.html#sec-4.5.3.2
although the first delivery pass some MTA use a faster 
fall-back

>  Attempting MX: P=020 D=ns.net TTL=(1385) MX=[mail.symonds.net]
> {63.194.20.32}
>  Attempting SMTP connection to [63.194.20.32 : 25]
>  Waiting for socket connection...
>  Socket connection established
>  Waiting for protocol initiation...
>  30 second wait for protocol timeout exceeded.
>  This message is 62 minutes old; it has 0 minutes left in this queue
>  Primary queue lifetime exceeded; message placed in retry queue*

I cannot see any excuse for a fast timeout when using a 
secondary MX host.  Which MTA are you using with this 
behaviour?  The RFC explains the 'why' of timings much better 
than I can summarize here.

-- Russ Herrold





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