I checked, I am not doing reverse lookup. I am a one-man shop here at the Museum, it took me awhile to even find what you were pointing out.
I have had the same results with Ninja, it shut my server down twice before, and they were quick to help me fix it. But this time, as soon as I engage Ninja, within 10-20 minutes, my processor (dual dual AMDs) usage runs up to 100%, when it is normally in the 3%-8% range. I have 4 gigs of RAM in that machine, and it does nothing else. So I have to dis-engage Ninja, and spam (and virii) flows in to anyone not using cached here with IMF and the Outlook filtration turned on. Through Terminal Server, for example, or OWA. I like Ninja, but the president of this museum wants all spam ended. If they don't fix today (we have been working on a solution for one day shy of a week) I will be forced to change. Any suggestions for anti-virus/spam protection? What works now and also will work with Exchange 07, to be implemented in a couple of months? -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Derek Harris Sent: Sunday, October 14, 2007 2:05 PM To: Exchange Discussions Subject: RE: could/should I make my Exchange server also a DNS server Are you doing reverse lookups on incoming msgs? (SMTP Virtual Server properties > Delivery tab > Advanced) If you are, you should configure external DNS servers, or it WILL hammer yours. I'm using Ninja now, and it works OK, but I'm a little disappointed with all of its bugs. Sunbelt is pretty responsive & fixes most of them quickly, but it's caused several short outages here, and it still causes many messages with attachments to timeout and drop. YMMV -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Holstrom, Don Sent: Thursday, October 11, 2007 12:35 PM To: Exchange Discussions Subject: RE: could/should I make my Exchange server also a DNS server Yes, I am using IMF, also Sunbelt Software's Ninja, which has been acting up lately and I don't know if I will go the Ninja route when I move up to Exchange '07. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ed Crowley Sent: Thursday, October 11, 2007 1:34 PM To: Exchange Discussions Subject: RE: could/should I make my Exchange server also a DNS server You can do that, but I don't know that it's a good idea. If your Exchange server is hitting the DNS servers abnormally hard, then maybe it's doing a lot of NDRs to spam. Do you have an antispam front-end such as IMF installed? Ed Crowley MCSE+Internet MVP Freelance E-Mail Philosopher Protecting the world from PSTs and Bricked Backups!T -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Holstrom, Don Sent: Thursday, October 11, 2007 10:18 AM To: Exchange Discussions Subject: could/should I make my Exchange server also a DNS server Exchange Server '03 on Server '03, no other purposes. Not a domain controller. I already have two DNS servers running. It hits the DNS servers hard all the time. If I can/should, should I make it primary, secondary, or tertiary? _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/read/?forum=exchange To subscribe: http://e-newsletters.internet.com/discussionlists.html/ To unsubscribe send a blank email to [EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. 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