----- Original Message ----- From: "David" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Sunday, December 19, 2004 12:42 Subject: Re: [IMail Forum] Separate SMTP Server - Slightly OT?
> Len wrote: > > 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. > > Thanks Len. We have a Barracuda Spam Firewall in front of the iMail server, > and it is doing a great job of blocking spam from hitting the iMail server. > We need a way or separate SMTP Server to use for clients' SMTP Server in > their email client when these connection problems occur though. At least > until either iMail can better handle the number of connections. As our user > base grows we will still hit this limit eventually. Have you looked at your activity logs? What is generating all this traffic. Unless you are running a very high volume site, 50 or 55 simultaneous connections for legitimate traffic really isn't that bad. Do you still have an MX record for your IMail box. We put up a Postfix box with Len Conrad's IMGate configs earlier this year, and then removed the IMail server's MX record entirely. As far as the rest of the planet is concerned, only the Postfix box is a mail server. Otherwise, it's quite possible that worms and such are still bogging down your machine even if you some sort of anti-spam server sitting there. -- A. Clausen 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/
