Let me add my strong voice of support to Len and IMGate. For me, it's a lifesaver -- blocking spam and stopping IE viruses before they make it to my iMail servers.
And Len's support for IMGate is superb. I highly recommend IMGate to everyone. Jeff Hitchcock - [EMAIL PROTECTED] -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Len Conrad Sent: Saturday, December 18, 2004 9:19 AM To: [EMAIL PROTECTED] Subject: Re: [IMail Forum] Separate SMTP Server - Slightly OT? >We are being told that this is a known "limitation" of iMail; it can't >handle more that 55 or so simultaneous SMTP connections. the problem is not only from legit connections but from spam that can typically consumes more than 50% of the SMTP connections, based on spam being well over 70% of all mail volume on many sites. Rejecting msgs to unknown recipients is also a big consumer of SMTP connections. >Seems hard to >believe that iMail is advertised as "unlimited" and can't handle more than >55 connections. 55 is sufficient for a large volume of legit msgs, but the 55 is not available for legit traffic. >But all of my testing has been consistent with this; >connection is real slow when the number gets over 45 or so. other symptoms seen by the sending MTA are IMail give "connection refused" and "timeout after <SMTP command>" >Anyway, we are looking for a product to set up that clients can use as their >SMTP Server instead of the current POP3 iMail server. By using a separate box as defensive MX, you will reduce dramatically the number of IMail SMTP connections wasted on spam, allowing more sessions for legit SMTP AUTH sessions. > At least as a >workaround until iMail fixes this or we split the load to 2 iMail servers, ... each of which will still have 50+% of its SMTP bandwidth wasted by spam. Not progress >or replace iMail if we have to. Keep Imail and its hardware, probably good for several more years. Try the above approach, with IMGate in my sig. Len _____________________________________________________________________ http://IMGate.MEIway.com : free anti-spam gateway, runs on 1000's of sites 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/
