This is likely a network connectivity issue. If a packet is dropped during the POP3 session, the POP3 session will timeout and end. Any mail that was previously downloaded during the pop3 session, but before the packet loss, will be re-downloaded again on the next POP3 session.
Another cause could be a malformed email message that AV software is gagging on. Any email with a null character (00h) will cause AV software, like Norton's and others, to choke on a message and never complete the pop3 session. If this is the case, the client will continuously receive the same messages over and over again (all messages still on the server, before the malformed message), until they deactivate their AV software. If the client is able to eventually receive all of their mail without having to deactivate their AV software or you deleting the offending message from the server, then this is not the cause, and you should look to network connectivity issues with your mail server. I very much doubt this is a "double-click the Send/Receive button issue". Aaron Fransen wrote: > I've tracked this as much as I can and this is what I've found: At no > time do the messages exist on the server twice...they are *only* > received twice by the client. > > It does seem to happen to some people more than others, which leads me > to believe it's a "double-click the Send/Receive" button issue, but > when I test it the second request is rejected since the POP server > only allows a single connection per individual. > > On 3/6/07, CLEMENT Francis <[EMAIL PROTECTED]> wrote: > >>> -----Message d'origine----- >>> De : [EMAIL PROTECTED] >>> [mailto:[EMAIL PROTECTED] la part de Aaron Fransen >>> Envoy=E9 : mardi 6 mars 2007 18:20 >>> =C0 : [email protected] >>> Objet : [xmail] Re: Receiving Mail multiple times >>> >>> >>> It's a tough problem to track down, but the fact that it happens on >>> the web client as well as in Outlook leads me to believe that it's not >>> a "multiple-click" problem (with the user attempting to connect to the >>> POP3 server multiple times.) >>> >>> When I say "ALL 5 twice" that's exactly it...they click "Check Mail" >>> once, and they might receive the next few messages, but each of the >>> new ones will appear twice in their inbox. >>> >>> Aaron >>> >>> >> Perhabs you can 'track' the real mailbox content on server side for = >> some >> time. >> To do this, you can setup a mailproc.tab file that do a copy of = >> messages in >> another directory and finaly a mailbox command to deliver. >> So next time your client tell you 'multiple receive' then with = >> date/time you >> can really see what was really on the server at that date/time in the >> mailbox (between two pop3 sessions to confirm in pop3 log) >> >> The only times I had multiple mails with xmail in mailboxes was : >> >> - client or network problem during pop3 session (AV, link, ...) >> >> - big messages and slow client pc running AV on incoming mails >> (at many times, the easy way to recover is to temporarly shutdown av on >> incoming mail, then retreive the big mail with no problem, then = >> reactivate >> the av) >> >> - loop in successive "redirect" command in mailproc or custdomain or >> custaccounts or filters .tab files >> (this normaly allways create duplicate messages, not 'some times' ...) >> >> >> Francis >> - >> 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]
