> > Well, assuming that "10053" refers to the Winsock error #10053, and that
> > "send error" means that there was an error in the send() function, then it
> > may be something different. The Winsock docs say that the error #10053 on
> > a send occurs because "The virtual circuit was aborted due to a timeout or
> > other failure". In English, this almost certainly means that a timeout
> > occurred (perhaps the remote computer disconnected).
>
>Well, well, but when I monitor the connection (via PortMaster console) I
>don't see any disconnection and I can ping the remote host !
Actually, I meant that the remote computer disconnected from the Internet,
not disconnected the TCP/IP connection. If they disconnected their phone
line or other Internet connection, or shut down their power, there is no
way that your server would know about it until the timeout hit. It would
also be possible to get a timeout if the remote mail client crashes, which
would still let the computer be pingable.
If everything is running properly on the remote client, the problem may be
the "or other failure" that Winsock talks about. I can't guess as to what
that might be, though, without seeing the Winsock code.
-Scott
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