My understanding is that it doesn't prevent spoofing of the From address, though it would be really nice if I'm wrong about this.
-Peter -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of B. van Ouwerkerk Sent: Wednesday, 08 September, 2004 12:30 To: Exchange Discussions Subject: Re: SPF Warning I already see a large number of disposable domains in use by spammers for some time now. Example: jjdkfhghfh.com Now what does a domain cost these days? Afaik less then US$ 9. If you think SPF will stop spam then you're wrong. If in use and checked for it will stop most of the spoofs, joe-jobs and alike. This includes viri that will spoof the FROM. So no more MS updates from home users :-) if MS would implement it and your server understands SPF. B. At 10:14 08-09-2004 -0700, you wrote: >yes, but if they're using a legit domain it makes them easier to >block, and it can't be too cost effective to buy thousands of domains >just so you can have SPF on all of them and constantly switch to get >around blocks. Of course the next step the spammers will want to take >is to start their own registrar (if they haven't already). > > >On Fri, 3 Sep 2004 22:31:45 -0500, Chris Scharff ><[EMAIL PROTECTED]> wrote: > > From the Captain Obvious category: > > > > Spammers using sender authentication too, study says > > Sender ID technology may not be effective at stopping spam, CipherTrust > > survey finds > > http://www.infoworld.com/article/04/08/31/HNspammerstudy_1.html > > > > "A check of approximately two million e-mail messages sent to > > CipherTrust customers between May and July showed that only about 5 > > percent of all incoming messages came from domains that published a > > valid sender authentication record using Sender Policy Framework (SPF) > > or a newer standard, backed by Microsoft, called Sender ID. Within that > > 5 percent, slightly more is spam than legitimate e-mail, said Paul > > Judge, chief technology officer at the Atlanta company." _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode =&lang=english To unsubscribe send a blank email to %%email.unsub%% 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. ______________________________________________ This message is private or privileged. If you are not the person for whom this message is intended, please delete it and notify me immediately, and please do not copy or send this message to anyone else. _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang=english 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.
