2005-02-04 19:51:21 SMTP command timeout on connection from
psmtp01.wxs.nl [195.121.6.56]

Patrick Holthuizen wrote:

> And yes, the problem is with Planet Internet
>
> - I don't receive messages that don't even have a log entry.
> - I get the same error you have
> - And I get time out errors on wxs.nl
> - Some messages get through okay....
>
>
> A.I. van Berkel wrote:
>
>> Hello all,
>> I have a mail problems with very little information to solve it. I'm
>> hoping someone else has come across this before and can provide some
>> hints.
>> Our ISP relays the MX records destined to our domain directly to the
>> mail server. The server is behind a firewall on a private network. The
>> firewall directs any smtp requests to the mail server. This all worked
>> quite well until three days ago. Since feb. 1 we do not recieve mail
>> from outside our ISP's network anymore. Sending mail to anywhere is no
>> problem. Recieving mail from people with the same ISP is also no
>> problem. Mail from outside the ISP's network yields the following
>> message in exims mainlog:
>>
>> 2005-02-03 10:43:28 SMTP protocol violation: synchronization error
>> (input sent without waiting for greeting): rejected connection from
>> H=psmtp01.wxs.nl [195.121.6.56]
>>
>> The configuration of our mailserver has not changed on feb. 1, but our
>> ISP has changed to a different mail-relay server on that date. The ISP
>> insists that the problem must be a configuration error on my server,
>> but he doesn't provide me with any pointers as to what has changed in
>> his configurations. Since the start of this problem correlates very
>> well with the commissioning of his new servers, I suspect that there
>> must be some sort of mismatch between the configuration of the two
>> servers.
>> Does anyone recognize this. I do not know which conf parameters to
>> look for. I tried switching RFC1413 callbacks on and off with no
>> result. If it is not my configuration, how do I convince my ISP to
>> check his again?
>>
>> Best regards,
>>
>> Arij van Berkel
>>
>> NB: please respond to the group as I cannot recieve mail.
>>
>>