Hi, Thanks for the reply Dave, it doesn't seem like I'm in "SOS" mode. I have not had any problems in the past and all of a sudden one day SMTP and Queuemgr goes berserk.
My IMail box does have MS DNS server already installed in caching server mode and the TCP/IP's DNS setting is pointed to a external DNS server. Although the IMail's SMTP DNS server was pointed to the local DNS server but I changed it to 127.0.0.1 but that didn't resolve the issue. Does anyone know a way to monitor incoming and outgoing mail traffic with IMail or a way to get some statistics? Thanks, Jon -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dave Doherty Sent: Thursday, December 07, 2006 12:20 AM To: [email protected] Subject: RE: [IMail Forum] SMTP high CPU usage Hi Jon- Maybe this ground was covered by others, by you seem still be in "SOS" mode. What about DNS? There is an old issue with IMail and DNS resolvers. The following configuration solves the problem: Your IMail box should have the Microsoft DNS Server service installed. The default installation is as a caching server, which is exactly what you need. The Network | TCP/IP params should specify high speed DNS resolvers provided by your access provider, NOT your local DNS servers, which should be set for no recursion. The IMail SMTP DNS server should be set to 127.0.0.1 The old IMail docs say you can use multiple resolvers by specifying ip addresses separated by spaces in the IMail SMTP property sheet. In fact, this has never worked. Microsoft does a competent job of resolving addresses, and the reference to 127.0.0.1 simply tells IMail to rely on the Microsoft DNS service. -Dave Doherty Skywaves, Inc. ---------- Original Message ---------------------------------- From: "Jon" <[EMAIL PROTECTED]> Reply-To: [email protected] Date: Wed, 6 Dec 2006 21:25:31 -0500 >Hi all, > >I tried running ASSP again but it didn't matter. As soon as I start up >Queuemgr or SMTPD the CPU usage sky rockets to 100%, at this point I think >IMail is hosed. Reading through the SMTP log file I see a lot of > >12:06 18:15 SMTP-(00000000) Info - Adding Queue file >C:\IMAIL\spool\Q33950809004cce99.SMD > >It doesn't get processed, so all I have are bunch of emails sitting there in >the queue. > >Any other ideas? > >Thanks again, > >Jon > > >-----Original Message----- >From: [EMAIL PROTECTED] >[mailto:[EMAIL PROTECTED] On Behalf Of Len Conrad >Sent: Wednesday, December 06, 2006 6:48 PM >To: [email protected] >Subject: Re: [IMail Forum] SMTP high CPU usage > > >>I used to see this a lot, running Imail 6.xx, before I put our ASSP gateway >>in place. I don't know how or if it was related, but I haven't had any >>trouble since we started turning away all the junk. > >Same with IMGate, which has "fixed" and "salvaged" so many IMail >boxes that were overwelmed and submerged trying to handle high-volume abuse. > >IMGate recently cost Barracuda the sale of a $25K BC800 which was >sent back to Barracuda after IMgate was installed in front of a dying >BC400, now resurrected. :) > >Len > > >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/ 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/
