Cool !! So Hotmail 'timeout' resolved.
Just the 'A ptr' use to resolve now ... Francis > -----Message d'origine----- > De : Edinilson J. Santos [mailto:[EMAIL PROTECTED] > Envoyé : lundi 5 septembre 2005 17:11 > À : [email protected] > Objet : [xmail] Re: messages to yahoo and or hotmail does not get del > ivered > Importance : Haute > > > > After 8 months I finally could solve my problem here. > Reading: > http://www.postfix.org/faq.html#timeouts > (recommended!!! an excellent FAQ!!!) > > I found that, for some strange reason, our gateway (using > freebsd) was > configured to use path mtu discovery > (net.inet.tcp.path_mtu_discovery=1). > After disabling this option to > net.inet.tcp.path_mtu_discovery=0 all emails > to hotmail.com and msn.com are, now, being sended DIRECTLY by Xmail. > > I want to really thanks everybody that works with me in this problem, > specially mr. Darren that sends the link about postfix. > > Best regards > > Edinilson > --------------------------------------------------------- > ATINET-Professional Web Hosting > Tel Voz: (0xx11) 4412-0876 > http://www.atinet.com.br > > > ----- Original Message ----- > From: "Jeff Buehler" <[EMAIL PROTECTED]> > To: <[email protected]> > Sent: Sunday, September 04, 2005 12:46 PM > Subject: [xmail] Re: messages to yahoo and or hotmail does > not get del > ivered > > > > You may have been right then, Rob - if you recently posted > about having > the exact same config I was thinking that that was Edinilson (I no > longer have that email - oops) so that would make possibly three with > this problem. He posted about this also, so I think I must be mixing > you two up a bit. > > It sounds like what you are doing should help get to the > bottom of it ... > > As Davide points out, though, it must be something either > unrelated (or > maybe indirectly related) to XMail since so few seem to have it. My > suspicion is still that it isWindows specific, possibly Win 2000 > specific, and that it has to do with some interaction between > that XMail > binary and DNS. But I can't test it easily (it would take a gun to my > head to get me to set up a Win 2000 server at this point). > Francis and > Edinilson seem to only have the problem with Hotmail and > Yahoo, so that > is also strange that you have it with many domains rather than just > those two. > > Rob, are you outdide the U.S.? > Edinilson, are you seeing the problem with Windows 2000 also or with > some other OS? What is your config since seem to have confused Robs > with yours? > > Jeff > > Rob Arends wrote: > > >Ok, I hadn't noticed anyone other than Francis post they had > the same issue > >- must have missed it. > >I didn't post config, but did say I have *exactly* the same > config and > >issue. (I think I even emphasised the 'exactly' then too.) > > > >Re the 'Cisco PIX' issue: > > > ><quote from http://www.postfix.org/faq.html#timeouts > > >Cisco PIX "fixup protocol smtp" bug > >The Cisco PIX firewall has a bug when running software older > than version > >5.2(4) or 6.0(1). > ></quote> > > > >I never have 'fixup protocol smtp' on because it does not > support ESMTP and > >AUTH, so it kills authenticated SMTP sessions. Also 6.0.1 > is really old, > >I'm currently using 6.3.5 > >Just to put perspective on the PIX issue, I install these > thing for a > >living > >and have never had to track down an SMTP issue like this, > that ended up > >being caused by the PIX. > > > >Back to the "DNS" issue: > >I have ethereal running 24x7 on my mail server now (25 hrs > so far), logging > >to file. I have enough disk space to handle that for a > while. I cleared > >the cache on the w2k DNS server (different box) and on the > mail server I > >'flushed dns', emptied the 'mx' & 'ns' cache in xmail and > restarted xmail. > > > >I then sent a test email to a user that I know has had > problems. It all > >worked as expected on the 'refreshed' environment - the mail > was received. > >Now I need to wait a few days? - not sure really how long - > but eventually > >the mails to this user will fail due to the A record being > used in place of > >the MX record. > >At that point I'll collate and analyse the packet dumps and report my > >findings. > > > >Note: the SmartDNSHost is inside my PIX firewall, so there > is nothing but > >LAN between the two servers. > > > >Rob :) > > > > > >-----Original Message----- > >From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On > >Behalf Of Jeff Buehler > >Sent: Sunday, September 04, 2005 12:50 AM > >To: [email protected] > >Subject: [xmail] Re: messages to yahoo and or hotmail does > not get del > >ivered > > > > > >/-- I think you may be meaning me when you say "Edlinilson"./ > > > >No, I meant Edinilson. He has the same config as Francis, > has what appears > >to be exactly the same behavior, has verified that MS SMTP > works where > >XMail > >fails, and so on. > > > >You may be a third person seeing exactly the same behavior - > your previous > >two emails that I read discussing greenbaycc.org and > intergraonline.com > >seemed to be something else completely. There was another > one you sent > >that > >said you were seeing an A record problem as well, but you > didn't send any > >info about your configuration - type of system, whether or > not it was with > >everyone (as it sounds like it is) or just Hotmail and Yahoo > (which, so > >far, > >seems to be the problem that Francis and Edinilson are specifically > >having). > >Little differences like that can easily mean that it is two entirely > >different problems. > > > >You probably mentioned some of this in one of the previous > threads, but > >neither my memory nor my datastore go back that far, so: > > > >What is your configuration (win 2000, Linux, what DNS, etc.)? You're > >problem sounds like XMail is using A records periodically > when it should be > >using MX records - this has been verified? It happens with > other domains > >periodically or consistently? Are Hotmail and Yahoo > noticeably suspect, or > >just as likely to fail as others? > > > >Jeff > > > > > >Rob Arends wrote: > > > > > > > >>I think you may be meaning me when you say "Edlinilson". > >> > >>Re Point 6, I did mention that I have the problem with > other MTAs that > >>have an A record for the domain. > >>"aanet.com.au" is an example. So it is not just yahoo/hotmail. > >>Re point 7, I agree that Xmail is, and should be, very RFC > compliant. > >> > >>I think the question is why is Xmail using the A record > when there is a > >>good MX record? > >>I have asked Davide to elaborate on his comment for FireWall > >>interference and I'll see what I can do on a packet trace. > >> > >>Rob :) > >> > >>-----Original Message----- > >>From: [EMAIL PROTECTED] > >>[mailto:[EMAIL PROTECTED] On Behalf Of Jeff Buehler > >>Sent: Saturday, September 03, 2005 1:50 AM > >>To: [email protected] > >>Subject: [xmail] Re: messages to yahoo and or hotmail does > not get del > >>ivered > >> > >> > >>Hmmm - so far, you two are the only ones that are verified as having > >>the exact same problem sending to Yahoo and Hotmail - there may be > >>others, but we haven't verified that, is that correct? You > both have > >>the same configuration (exactly, as Edinilson pointed out). > So what do > >>we know so far? > >> > >>1. WIN 2000 service pack 4 > >>2. MS DNS from Win 2000 on a different system than XMail > and presently > >>using SmartDNSHost (Edlinilson pointed out he seemed to have the > >>problem even without SmartDNSHost) 3. Neither of you is in > the US (does > >>this increase the likelihood of failed connection attempts (?) or do > >>these providers have systems spread globally > >>(?)) > >>4. XMail 1.21 (but Edinilson pointed out that other versions down to > >>1.17 behaved the same way) 5. Francis has verified that with this > >>configuration XMail seems to be using A records on occasion when it > >>should be using MX records 6. The problem is intermittent and ONLY > >>happens with Hotmail and Yahoo 7. Edinilson has verified that the > >>problem does not exist when using MS SMTP to send from the same > >>configuration, so it seems somehow related to XMail. > >>On this issue I have found XMail to be extremely RFC > compliant (I think > >>that was one of Davides intentions) and it may be that MS > SMTP is doing > >>something "extra" to overcome some known issue that we have yet to > >>discover with Hotmail, Yahoo, DNS, or something else. > >>8. Many or most others running XMail are not having this > problem. It > >>remains to be seen if others running it on Windows 2000 do or don't. > >> > >>So here is what I would do if I were you: > >> > >>1. Try it on Windows 2003 server if you can - 2000 is > starting to get a > >>little grey at the temples anyway. > >>2. Try it on Linux or *BSD (FreeBSD! FreeBSD!) > >> > >>If you still have the same problem with these > configurations, then the > >>problem likely has to do with your infrastructure outside > of the OS - > >>some funky problem that defies imagination, but that IT > people are all > >>quite familiar with! You know, the kind of problem where you stand > >>there with your mouth hanging open and mutter: "huh?" and it never > >>makes any sense, or a distinction in the way it interacts > with XMail that > >> > >> > >is unusual. > > > > > >>Without being able to replicate the behavior, you have a > very limited > >>test group - you two (so far!) If I could replicate the > behavior, and > >>had any time left over after typing this email, then I > would help, but > >>at the moment it is up to you! I don't think anyone is > ignoring XMail > >>under Windows, but finding any possible bug without being able to > >>easily replicate it is extremely difficult... > >> > >>Jeff > >> > >> > >> > >>CLEMENT Francis wrote: > >> > >> > >> > >> > >> > >>> > >>> > >>> > >>> > >>>>-----Message d'origine----- > >>>>De : Edinilson J. Santos [mailto:[EMAIL PROTECTED] Envoyé : > >>>>vendredi 2 septembre 2005 15:02 À : [email protected] Objet : > >>>>[xmail] Re: messages to yahoo and or hotmail does not get > delivered > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>.. > >>>.. > >>>.. > >>> > >>> > >>> > >>> > >>> > >>> > >>>>I'm discarding DNS problems. > >>>> > >>>>Thanks > >>>> > >>>>Edinilson > >>>>--------------------------------------------------------- > >>>>ATINET-Professional Web Hosting > >>>>Tel Voz: (0xx11) 4412-0876 > >>>>http://www.atinet.com.br > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>Me too ... > >>> > >>>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] > >> > >> > >> > >> > >> > >> > > > >- > >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] > - 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]
