> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of Rod Dorman > Sent: Tuesday, January 14, 2003 11:22 AM - FamHost > To: [EMAIL PROTECTED] > Subject: Re[2]: [IMail Forum] Using server's IP address in "From" field > > > On Tuesday, January 14, 2003, 11:36:44 AM, Rick wrote: > RL> I stand corrected again.. :-) although I have had it filter > out an ip via > RL> the rules.ima file.. but the smtp access control list is > best.. imho best to > RL> ban the whole class 'c' .. > > Its best to ban only the IPs used by the spammer. > > Now a days ISPs are requiring justifying IP allocations, > they're less > likely to hand out a /24 just because you want one. > > If you arbitrarily block a /24 without researching how > much of it is > actually controlled by the spammer you run the risk of blocking > legitimate > servers. > > -- > [EMAIL PROTECTED] "The avalanche has already started, it is too > Rod Dorman late for the pebbles to vote." � Ambassador Kosh
You're absolutely right Rod, The only time I personally 'look' into the range of ip's to block is if the mail was not generated from mass usage email servers like hotmail.com yahoo.com aol.com msn.com.. etc etc.. Now email from places like salliespornoshop.com or youllmortageyourhouse4ever.net that was generated somewhere from Iraq or turkey really isn't of any use to any of our small 20 or so companies. If I elect to ban the whole class "A" from either Iraq or Turkey.. none of our companies would be adversely effected - ever. As you probably already know.. many United States born spam/porno shops have taken there service overseas to avoid and US laws/regulations. Because of such actions.. spammers frequently 'change' providers once blocked... I'm seeing a flux about every 3 months in the change of the ip address (ranges) from original spammers.. vigilance.. IMGate/Declude.. etc.. is the only way to go.. ~Rick ___________________________________________________________________ Virus Scanned and Filtered by http://www.FamHost.com E-Mail System. 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/
