Hello Arno, I see in the log that there is 5 seconds delay between DATA and the 10054 error. This may be interesting.
During this delay do you send data ? I say this because some server will close cnx if no data transmitted fast enought and do not receive data for xx seconds, usually the timeout is between 1 or 3 minutes but I know a server that wait only 3 seconds (may be bad configuration). The best is to ask client to manualy telnet port 25 into the server and type a SMTP sequence and wait 5 seconds betweent each line you type. Also may be there is some "check-back" cnx to the client's machine and if FW is ON then machine cannot be "checked". regards. AG> One of my customers reported problems sending mail with an TSmtpCli AG> application when the Windows firewall is turned on. Strange is that AG> sending mail data fails for some reason and the server drops the AG> connection after ~2 minutes (of inactivity) even though port 25 AG> is explicitely opened. AG> First log is with firewall turned off, mail is sent successfully, AG> second log with firewall turned on and port 25 explicitely opened: AG> 01.01.08 2:22:47 PM < MAIL FROM:<[EMAIL PROTECTED]> AG> 01.01.08 2:22:48 PM > 250 2.1.0 <[EMAIL PROTECTED]>... Sender ok AG> 01.01.08 2:22:48 PM < RCPT TO:<[EMAIL PROTECTED]> AG> 01.01.08 2:22:48 PM > 250 2.1.5 <[EMAIL PROTECTED]>... Recipient ok AG> 01.01.08 2:22:48 PM < DATA AG> 01.01.08 2:22:48 PM > 354 Enter mail, end with "." on a line by itself AG> 01.01.08 2:22:48 PM < . AG> 01.01.08 2:22:48 PM > 250 2.0.0 m01JMoVp009311 Message accepted for delivery AG> 01.01.08 2:22:48 PM < QUIT AG> 01.01.08 2:22:48 PM > 221 2.0.0 ms-smtp-xyz.com closing connection AG> 01.01.08 4:43:40 PM < MAIL FROM:<[EMAIL PROTECTED]> AG> 01.01.08 4:43:41 PM > 250 2.1.0 <[EMAIL PROTECTED]>... Sender ok AG> 01.01.08 4:43:41 PM < RCPT TO:<[EMAIL PROTECTED]> AG> 01.01.08 4:43:41 PM > 250 2.1.5 <[EMAIL PROTECTED]>... Recipient ok AG> 01.01.08 4:43:41 PM < DATA AG> 01.01.08 4:43:41 PM > 354 Enter mail, end with "." on a line by itself AG> 01.01.08 4:45:46 PM < Error=10054 Session aborted! AG> Adding the application to the exception list makes no difference. AG> Anybody any idea? AG> -- AG> Arno Garrels -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
