I had a similiar problem with my dial up users. It was eventually traced to
the ISP (Mindspring) filtering port 25 for all traffic except to their own
mail servers. Their goal was to prevent spam from originating on their
network. This may or may not be happening to you, but is probably worth a
call to the ISP to confirm.
It was strange in that the issue only happened sporadically, it seemed that
they had not programmed all their routers with the filter. This caused it
to be pretty hard to diagnose. In the end I called and refused to speak to
tech support, and requested a "postmaster". Ultimately I got to speak to
someone with a clue as to what was going on.
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Thomas Loyal
Sent: Monday, July 26, 1999 5:35 PM
To: [EMAIL PROTECTED]
Subject: [IMail Forum] SMTP Connection Problem
Greetings:
I've got a client who uses an Imail server at an ISP for their pop3
mailboxes. They access the Net through a different ISP using a webramp
dial-up router. They are experiencing problems consistently sending mail.
POP3 works Ok, but SMTP is intermittent. They Receive an ox800cccoe error in
their outlook 2000 Client. The client is configured to send authentication
info on connection. Does anyone have any reccommendations as to why
connections are intermittent? I suspect that the anti-spam configuration on
this particular server may be what is causing the problem, as all other
TCP/IP services work outbound through the WebRamp.(The webramp uses multiple
dial-up accounts to connect users to the net, would connections coming from
2 or more ip addresses cause problems?)
Any insight would be greatly appreciated.
Thanks
Tom Loyal, MCSE
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