What OS do you use on your mailserver? You can use tcpdump (on linux) or WireShark (windows and linux) to capture the SMTP session with the remote SMTP server, and see all the response codes and commands from both sides.
Ivo ----- Original Message ----- From: "Tracy" <[EMAIL PROTECTED]> To: <xmail@xmailserver.org> Sent: Thursday, April 26, 2007 1:51 PM Subject: [xmail] Re: Vanishing mails? > Local mail server configuration is reasonably correct. The HELO domain > setting is a valid FQDN and looking up that FQDN gives the IP address of > the mail server. > > I deliver mail from other users to Yahoo (no one else on my server sends > email to this particular user's place of business) without problem. > > I'm just looking for a way to prove that the mail isn't simply vanishing > into thin air on *my* server - once I can confirm it successfully left > my server, then I can start worrying about what happens to it on the > remote server. > > Ivo Smits wrote: >> This sounds like hotmail-policy. E-mail that may be spam, can just >> vanish, >> even when it has been accepted by their SMTP server, and there was no >> failure report at all. >> What can you do about this? I still don't really know. You should at >> least >> check that the HELO-domain is valid, does not contain something that >> looks >> like your IP address, and points back to the IP of the mailserver. >> >> Ivo >> >> ----- Original Message ----- >> From: "Tracy" <[EMAIL PROTECTED]> >> To: <xmail@xmailserver.org> >> Sent: Thursday, April 26, 2007 1:13 PM >> Subject: [xmail] Vanishing mails? >> >> >>> I have a user who is telling me that they attempted to send email to >>> various places and the emails are simply vanishing. One of the places is >>> to the place they work, and another was to Yahoo. >>> >>> I've looked in my logs, and I see the mail coming into my server >>> (verified by the SMTP logs showing the sender as my local user and the >>> recipient as the remote user), and I see the SMAIL entry showing the >>> mail being delivered by SMTP - but I don't see any way to confirm that >>> the mail was actually delivered to Yahoo or to their work machine. >>> >>> Where would I look to verify delivery? Does the fact that there's an >>> entry in the SMAIL log with delivery method "SMTP" mean that the >>> delivery attempt to the remote server was successful (meaning that there >>> was no SMTP error generated during the protocol session and there was no >>> DNS lookup or other transmission difficulty - I understand that mailbox >>> delivery on the other side cannot be guaranteed)? >>> >>> Any ideas on where to look would be appreciated. >>> - >>> To unsubscribe from this list: send the line "unsubscribe xmail" in >>> the body of a message to [EMAIL PROTECTED] >>> For general help: send the line "help" in the body of a message to >>> [EMAIL PROTECTED] >>> >> >> - >> To unsubscribe from this list: send the line "unsubscribe xmail" in >> the body of a message to [EMAIL PROTECTED] >> For general help: send the line "help" in the body of a message to >> [EMAIL PROTECTED] >> >> > > - > To unsubscribe from this list: send the line "unsubscribe xmail" in > the body of a message to [EMAIL PROTECTED] > For general help: send the line "help" in the body of a message to > [EMAIL PROTECTED] > - To unsubscribe from this list: send the line "unsubscribe xmail" in the body of a message to [EMAIL PROTECTED] For general help: send the line "help" in the body of a message to [EMAIL PROTECTED]
