----- Original Message ----- From: "Martin Schaible" <[EMAIL PROTECTED]> To: "A. Clausen" <[EMAIL PROTECTED]> Sent: Thursday, November 25, 2004 09:37 Subject: Re: [IMail Forum] Dictionary attacks
> Hi > > > I'm not too sure what you mean by "bound" to IMail. I can't see any reason > > why it couldn't be a frontend for any MTA. > This was already answered yesterday night. My english-parser had an GPF ;-) > > After the discussion, it looks that ImGate might be the right and serious solution. > But it is an overkill for my tiny small ISP company with a less than 1000 mail accounts. We have, all domains counted, about 700 email addresses, and the level of dictionary attacks we were getting were so severe that we were forced to go to Postfix, and hide our IMail box. Unfortunately to the pleasant fellows who initiate these attacks, relative size means nothing. I've never really comes to grip with whether what we were being hit by was a spammer, or a deliberate DoS. It doesn't amtter, as it shut down our IMail service at times. It got so bad that even the MS-SMTP service we tried using as a gateway was getting swamped with tens of thousands of queue files. These are all running on higher-end machines, and the only thing I can say is that there must be some real issues with MS's TCP/IP networking, because we're now running on a 233mhz Pentium with 128mb of RAM, and it handled the worst that these guys could do extraordinarily well. -- 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/
