Wow thanks for your quick reply. I'll reply between the lines.
> First, what kind of SMTP Server is receiving the e-mails on the other end? Exchange 2000 server. >Second, are you positive that your ICS application is sending a QUIT command at the end of the transaction? I believe so. The function QuitSync is called, and the return code tested. >And third, the server might be rejecting messages from your > ICS client because it does not recognize the MUA as a "valid" one, > while it recognizes OE as a legitimate mailer. That's an interesting one. What is MUA and how do I set it? Sorry for what is probably a dumb question. Pete. ----- Original Message ----- From: "DZ-Jay" <[EMAIL PROTECTED]> To: "ICS support mailing" <twsocket@elists.org> Sent: Monday, September 19, 2005 11:29 AM Subject: Re: [twsocket] [tsyncsmtpcli] Problem sending email to Exchange2000 server > A few things come to mind. First, what kind of SMTP Server is > receiving the e-mails on the other end? This might be important, as > some servers have some weird, non-standard requirements or modus > operandi. Second, are you positive that your ICS application is > sending a QUIT command at the end of the transaction? Some servers > require this in order to queue a message, and if the connection is > closed without receiving the QUIT command, they might dismiss the > message. And third, the server might be rejecting messages from your > ICS client because it does not recognize the MUA as a "valid" one, > while it recognizes OE as a legitimate mailer. > > Can you post, or send by private message, a verbose log of a complete > SMTP transaction between your ICS client and the server, from one of > those messages that is "lost"? Also, you might want to compare the > headers sent by your ICS client and those sent by OE. Try mimicking OE > by forging the message's headers to look like Outlook Express' and see > if that helps. > > dZ. > > On Sep 19, 2005, at 06:23, Pete Williams wrote: > > > Hi > > > > (Before saying this is a server problem, read the whole message, as > > it's got us confused) > > > > Our ICS-based email app (using TSnycSMTPCli) work fine most of the > > time. We have once instance though where when sending external emails > > (i.e., emails that require to be sent over the internet, not > > internally) the application using ICS thinks it's sent, but the email > > just disappears. Internal emails go fine. > > > > Now, the strange thing is that Outlook Express (connected as a > > SMTP/POP3 client) on the same machine as ICS *can* send external > > emails with no problem. > > > > Does anyone have any ideas as to why OE might be able to send, and > > TSyncSMTPCli might not? There are no errors reported by ICS. > > > > If anyone can help I'd be grateful. > > > > Pete Williams. > > > > > > -- > > To unsubscribe or change your settings for TWSocket mailing list > > please goto http://www.elists.org/mailman/listinfo/twsocket > > Visit our website at http://www.overbyte.be > > > > -- > To unsubscribe or change your settings for TWSocket mailing list > please goto http://www.elists.org/mailman/listinfo/twsocket > Visit our website at http://www.overbyte.be > > > __________ NOD32 1.1219 (20050916) Information __________ > > This message was checked by NOD32 antivirus system. > http://www.eset.com > > -- To unsubscribe or change your settings for TWSocket mailing list please goto http://www.elists.org/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
