I use it. Used it starting it was called I Hate Spam Server Edition. First installed late 2003/early 2004 in one environment. I really like it. Does an excellent job and very flexible. The AV seems to do a pretty good job and it's included. Define different policies, assign users to those policies. End user black and whitelists.
It had some problems back in the day with keeping up with HEAVY SPAM loads. The processing queue would get backed and since it relies on an SMTP Event Sink, it just wouldn't be able to keep up. The biggest downside is that it has to run on every mail server where mailbox stores exist. This means you need to allow spam to get to that server before it can process it. That's part of what caused the problems I mentioned above. I can't really speak about real world experience with heavy spam loads under Ninja because I ended up putting a Barracuda in place. I still used Ninja for my users who got hit the hardest would spam, as Ninja would grab things the Barracuda didn't. I Having some kind of spam prevention at the SMTP Gateway/Exchange Front-End/Perimeter/Edge to combine with Ninja would be ideal if you wanted to use Ninja as your primary spam defense. I'd recommend an RBL and/or a Directory Lookup. Both which can be done free with Exchange. In my personal spam experience, using a trusted RBL and a Directory Lookup check cut down on over 95% of the spam. That's a lot less spam to actually be processed by Ninja's analytics. PS - All my comments are based on use in Exchange 2003 RTM/SP1/SP2 environment only) -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Paul Hutchings Sent: Wednesday, August 27, 2008 11:32 AM To: Exchange Discussions Subject: Sunbelt Software's Ninja - Anyone Using? If so care to offer an opinion on or off list? Thanks. -- MIRA Ltd Watling Street, Nuneaton, Warwickshire, CV10 0TU, England. Registered in England and Wales No. 402570 VAT Registration GB 114 5409 96 The contents of this e-mail are confidential and are solely for the use of the intended recipient. If you receive this e-mail in error, please delete it and notify us either by e-mail, telephone or fax. You should not copy, forward or otherwise disclose the content of the e-mail as this is prohibited. _________________________________________________________________ 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] t.com Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with. _________________________________________________________________ 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. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with.
