I am no expert on this, but I believe your problem is trying to use iMail as your gateway server. You probably should look at using something along the lines of IMGate - http://imgate.meiway.com/
It'd also probably do some good if you did some checks to those top IPs connecting to your server against a RBL database. It looks like they are spewing a bunch of SPAM your way. http://www.dnsstuff.com/tools/ip4r.ch?ip=216.74.144.15 http://www.dnsstuff.com/tools/ip4r.ch?ip=216.74.144.14 http://www.dnsstuff.com/tools/ip4r.ch?ip=216.74.144.13 http://www.dnsstuff.com/tools/ip4r.ch?ip=209.133.28.63 By blocking *4* IPs, you could cut down on 2.3% of your incoming email. Those IPs are failing several RBL tests, so you must have absolutely no spam filtering in place. Consulting the archives would also be beneficial. I'd suggest that you spend a few hours reading because you'd probably find the archives a good resource. You will run into a lot of rhetoric and philosophical differences on how best to deal with SPAM, but also quite a bit of information that applies directly to the issue at hand. -Jay -----Original Message----- From: Kris McElroy [mailto:[EMAIL PROTECTED] Sent: Thursday, January 22, 2004 9:55 PM To: [EMAIL PROTECTED] Subject: [IMail Forum] Imail Gateway Woes, Suggestions Needed I have two Imail Gateway's both running Imail 7.15, Declude Virus and Junkmail, they only relay incoming mail to my POP/SMTP/Web Imail Server. One server is a Dual Xeon 2.8Ghz, 1GB Ram, 36GB 15K SCSI. Second is a Dual PIII 966Mhz, 1GB Ram, 40GB IDE. I have about 100 Domains that are any where from slow to moderately busy. I have the MX Records pointed so that it is about an equal amount of traffic to each machine. The PIII is starting to become "overworked" so it will start spooling up mail around 13,000 Messages in the spool waiting to be delivered. So I pointed one of the domains that is fairly high traffic to my Xeon server. Well about a day later the xeon started spooling up mail around 8,000 Messages in the spool waiting to be delivered. I increased the Maximum SMTP Processes on the Dual Xeon to 150, to get the mail delivered. I ran the Imail Log Analyzer and came up with the following: SMTPD Connections Total - 379,093 Occurrences Description 2,724 216.74.144.15 2,695 216.74.144.14 2,622 216.74.144.13 953 209.133.28.63 VERSUS SMTP Remote Host Deliveries Total - 23,770 I know that this indicates a serious problem. I can't afford for my mail to be delayed anywhere from 1 hour to 4 hours, this isn't good business, so I am up for suggestions. I know that there are people on this list that Run Imail Gateways/Servers that see way more volume than I do. So what should I expect to see from the above mentioned Xeon server Load wise? What do most of you have your Maximum SMTP Processes set to? Should I replace the PIII with another Dual Xeon and Run ROUND Robin DNS for load balancing? Thanks, Kris McElroy [EMAIL PROTECTED] 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/
