Now THAT is very interesting. What was your old DNS server? Was it an MS DNS server running W2K/ NT4, or was it a 'nix variant? Anything unique/special about its config? If MS, are you running Active Directory?
Dev -----Original message----- From: "mail-lists " [EMAIL PROTECTED] Date: Fri, 10 Jun 2005 12:26:54 -0700 To: [email protected] Subject: Re: Re[4]: [IMail Forum] send error 10053 > For anybody who is interested about the issue of timeouts connecting to > certain mail servers... > > It was a bad DNS server. It is one that we use for all internal clients > here on our network without issue. But I set up a new Win 2k dn s server and > replaced that in the IMail server and the Windows box itself and poof! > Problem disappeared. Still haven't found anything in the bad dns server's > log to indicate why this happened. Needless to say, we'll be taking it down > now. Who knows what other problems it's causing without us knowing. > > ---------- Original Message ---------------------------------- > From: Dev <[EMAIL PROTECTED]> > Reply-To: [email protected] > Date: Thu, 9 Jun 2005 14:37:15 -0700 > > > > >The responding on the wrong interface issue is > >something, as far as I am aware, that Ipswitch has > >never addressed publicly. > > > >I believe the issue is caused by two factors--Imail 7 > >binding to all IP's, and Win2K's socket pooling. Both > >have to be addressed. > > > >Pull up netstat or TCPView, and see what the local > >address is that the service is listening on. One of two > >possibilities: > > > >A. If SMTP (port 25) is listening on the assigned IP, > >great. > > > >B. But if the local address is "0.0.0.0", it is > >listening on ALL IP's, and Imail 7 is too brain dead to > >handle it gracefully. I don't know about Imail 8. > > > >Disabling socketpooling is in the Microsoft KB: > >http://support.microsoft.com/default.aspx?scid=kb;en-us;310155 > >http://support.microsoft.com/kb/q238131/ > > > >Good Luck! > > > >Dev > > > > > > > >Thursday, June 9, 2005, 9:07:27 AM, you wrote: > > > >ml> Dev: We do have 3 OEM preinstalled NICs in > >ml> the server.. And 3 IPs bound to the 1 NIC we are > >ml> using right now for other hosts in IMail.. Maybe > >ml> during the weekend I can test that out and disable > >ml> the other NICs and remove the extra IPs and check > >ml> it out. > > > >ml> Markus: Yes it happens around the clock. > >ml> More frequently during the day just because more > >ml> mail is sent. And it only happens when sending to > >ml> certain domains. Cingular, sbcglobal, sometimes > >ml> hotmail, yahoo, etc, etc... And yet the majority > >ml> of others we have no difficulty whatsoever. Not > >ml> sure exactly how to measure the link speed between > >ml> the two.. We've got 3mb incoming and 1.5mb > >ml> outgoing T1's from our network. > > > >ml> Shouldn't changing the registry settings > >ml> that Sandy specified on the TCPTimedWaitDelay to 60 > >ml> seconds from 4 minutes stop this from happening? > >ml> Or since it's already an active connection that > >ml> setting won't have an effect? There's no way our > >ml> server should take this long in sending a 87k msg. > > > >ml> 06:09 10:09 SMTP-(00000DDC) processing > >ml> d:\Imail\spool\Q5bb501da00c4d0c5.SMD > >ml> 06:09 10:09 SMTP-(00000DDC) Trying cingular.com (0) > >ml> 06:09 10:09 SMTP-(00000DDC) Connect > >ml> cingular.com [170.35.225.25:25] (1) > >ml> 06:09 10:09 SMTP-(00000DDC) 220 SMTP Proxy Server Ready > >ml> 06:09 10:09 SMTP-(00000DDC) >EHLO > >ml> cottonwoodfinancial.com > >ml> 06:09 10:09 SMTP-(00000DDC) > >ml> 250-extmail10.cingular.com ESMTP Server Ready > >ml> 06:09 10:09 SMTP-(00000DDC) 250-SIZE 85760 > >ml> 06:09 10:09 SMTP-(00000DDC) 250-STARTTLS > >ml> 06:09 10:09 SMTP-(00000DDC) 250-TLS > >ml> 06:09 10:09 SMTP-(00000DDC) 250 DSN > >ml> 06:09 10:09 SMTP-(00000DDC) >MAIL > >ml> FROM:<[EMAIL PROTECTED]> > >ml> 06:09 10:09 SMTP-(00000DDC) 250 +OK Sender OK > >ml> 06:09 10:09 SMTP-(00000DDC) >RCPT > >ml> To:<[EMAIL PROTECTED]> > >ml> 06:09 10:09 SMTP-(00000DDC) 250 +OK Recipient OK > >ml> 06:09 10:09 SMTP-(00000DDC) >DATA > >ml> 06:09 10:09 SMTP-(00000DDC) 354 Start mail > >ml> input, end with ".<CR><LF>" > >ml> 06:09 10:14 SMTP-(00000DDC) >. > >ml> 06:09 10:18 SMTP-(00000DDC) rl-recv: Blocking call cancelled > >ml> 06:09 10:18 SMTP-(00000DDC) > >ml> 06:09 10:18 SMTP-(00000DDC) SMTP_DELIV_FAILED > >ml> 06:09 10:18 SMTP-(00000DDC) >QUIT > >ml> 06:09 10:19 SMTP-(00000DDC) 250 +OK message queued for delivery. > >ml> 06:09 10:19 SMTP-(00000DDC) requeuing > >ml> d:\Imail\spool\Q5bb501da00c4d0c5.SMD R0 T1 > >ml> 06:09 10:19 SMTP-(00000DDC) finished > >ml> d:\Imail\spool\Q5bb501da00c4d0c5.SMD status=3 > > > >ml> ---------- Original Message > >ml> ---------------------------------- > >ml> From: Dev <[EMAIL PROTECTED]> > >ml> Reply-To: [email protected] > >ml> Date: Thu, 9 Jun 2005 02:20:00 -0700 > > > >>>Several years ago, I found a lot of 10053 errors on our > >>>server were attributable to Imail's archaic core code > >>>binding it to all IP's. Packet sniffs showed many > >>>timeouts were caused when Imail inanely began > >>>responding to traffic on the wrong interface! > >>> > >>>The issue was drastically reduced when we started using > >>>only 1 NIC and 1 IP address. > >>> > >>>That was my experience with Imail 5-7. Your mileage may > >>>vary. :-D > >>> > >>>Dev > >>> > >>> > >>> > >>> > >>>Wednesday, June 8, 2005, 10:50:50 PM, you wrote: > >>> > >>>MG> Can you see this connection timeouts and 10053 > >>>MG> errors around the clock and > >>>MG> to many different servers or only to certain > >>>MG> remote servers? If yes, can you > >>>MG> measure the link speed between this machines? If no, what's your own > >>>MG> connection type and speed? > >>> > >>>MG> Markus > >>> > >>> > >>>>> -----Original Message----- > >>>>> From: [EMAIL PROTECTED] > >>>>> [mailto:[EMAIL PROTECTED] > >>>>> On Behalf Of mail-lists > >>>>> Sent: Wednesday, June 08, 2005 11:56 PM > >>>>> To: [email protected] > >>>>> Subject: RE: [IMail Forum] send error 10053 > >>>>> > >>>>> Awesome, thanks! But the thing is the server is *never* > >>>>> under that high a load. This will happen 24 hours a day, and > >>>>> at 3 am the volume of msgs being delivered is maybe 4 per > >>>>> hour. Even throughout the day the cpu and network util never > >>>>> comes close to maxing out. > >>>>> > >>>>> ---------- Original Message > >>>>> ---------------------------------- > >>>>> From: "CyberSharks.Net Support Team" > >>>>> <[EMAIL PROTECTED]> > >>>>> Reply-To: [email protected] > >>>>> Date: Wed, 8 Jun 2005 17:49:28 -0400 > >>>>> > >>>>> >Search the archives for the registry tweaks for TCP > >>>>> TimedWaitDelay and > >>>>> >other tweaks that will make Imail close some connections > >>>>> quicker under > >>>>> >heavy load and have more available ports to dynamically > >>>>> assign. I have > >>>>> >a .reg file that I run on all of our mail servers now before > >>>>> installing > >>>>> >Imail or any other mail server software. > >>>>> > > >>>>> >Justin Dixon, CCNA > >>>>> >CyberSharks.Net, Inc. > >>>>> >http://www.cybersharks.net > >>>>> > > >>>>> > > >>>>> >-----Original Message----- > >>>>> >From: [EMAIL PROTECTED] > >>>>> >[mailto:[EMAIL PROTECTED] > >>>>> On Behalf Of mail-lists > >>>>> >Sent: Wednesday, June 08, 2005 5:15 PM > >>>>> >To: [email protected] > >>>>> >Subject: [IMail Forum] send error 10053 > >>>>> > > >>>>> > Hi All, > >>>>> > > >>>>> > I'm having an issue with my Imail 7.15 > >>>>> server. There are actually > >>>>> >multiple issues but I believe all come from one source. > >>>>> > > >>>>> > Lots of times upon sending to certain domains, our mail > >>>>> server will > >>>>> >pause between the sending of the data, to > >>>>> sending the . to indicate > >>>>> >that the e-mail has completed (sometimes up > >>>>> to 15 minutes). This in > >>>>> >turn causes the remote server to sever the > >>>>> connection. IMail thinks > >>>>> >that the msg never got sent and re queues it. However every > >>>>> time this > >>>>> >happens, the remote user receives duplicate copies up until > >>>>> I delete > >>>>> >the msg from the queue or it reaches the maximum and returns > >>>>> back to the sender as undeliverable. > >>>>> > > >>>>> > The 2nd issue is lots of timeouts upon checking IMAP and > >>>>> POP mailboxes. > >>>>> >This happens more often if there are a > >>>>> large number of messages to > >>>>> >download or synch. The error received here is 10053. On > >>>>> other similar > >>>>> >winsock errors, people were told to change NIC settings, or > >>>>> just buy a better one... > >>>>> >The one we have is a "3Com Gigabit Ethernet Server NIC (SX/TX)". > >>>>> > > >>>>> > So far I've dropped it down to full > >>>>> duplex 100mb/s and turned the > >>>>> >jumbo MTU frames on and set to 1500. Are there any other > >>>>> settings I might change? > >>>>> >I might try another built in NIC that the > >>>>> server has tonight just to > >>>>> >see if that makes things any better. > >>>>> > > >>>>> > Thanks! > >>>>> > > >>>>> > Cavell > >>>>> > > >>>>> >To Unsubscribe: > >>>>> http://www.ipswitch.com/support/mailing-lists.html > >>>>> >List Archive: > >>>>> >http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > >>>>> >Knowledge Base/FAQ: > >>>>> http://www.ipswitch.com/support/IMail/ > >>>>> > > >>>>> > > >>>>> >To Unsubscribe: > >>>>> http://www.ipswitch.com/support/mailing-lists.html > >>>>> >List Archive: > >>>>> >http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > >>>>> >Knowledge Base/FAQ: > >>>>> http://www.ipswitch.com/support/IMail/ > >>>>> > > >>>>> > >>>>> To Unsubscribe: > >>>>> http://www.ipswitch.com/support/mailing-lists.html > >>>>> List Archive: > >>>>> http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > >>>>> Knowledge Base/FAQ: > >>>>> http://www.ipswitch.com/support/IMail/ > >>>>> > >>> > >>> > >>>MG> To Unsubscribe: > >>>MG> > >>>http://www.ipswitch.com/support/mailing-lists.html > >>>MG> List Archive: > >>>MG> > >>>http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > >>>MG> Knowledge Base/FAQ: > >>>MG> http://www.ipswitch.com/support/IMail/ > >>> > >>> > >>>To Unsubscribe: > >>>http://www.ipswitch.com/support/mailing-lists.html > >>>List Archive: > >>>http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > >>>Knowledge Base/FAQ: > >>>http://www.ipswitch.com/support/IMail/ > >>> > > > >ml> To Unsubscribe: > >ml> http://www.ipswitch.com/support/mailing-lists.html > >ml> List Archive: > >ml> http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > >ml> Knowledge Base/FAQ: > >ml> http://www.ipswitch.com/support/IMail/ > > > > > >To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html > >List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > >Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ > > > > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html > List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
