[Mimedefang] Sender Verification (was Re: VERY Newbie Question)

[Matthew.van.Eerde at hbinc.com]

Kelson wrote:
> Ian Mitchell wrote:
>> Then I would wonder if something along the lines of SPF
>> (spf.pobox.com) would work. I know this method was recently
>> critisized for Microsoft's liscensing methods and such forth.
> 
> You're thinking of SenderID, which is a combination of SPF with
> Microsoft's own proposals.  SPF itself isn't license/patent/etc.
> encumbered, but Microsoft's sections are.  (Though reportedly less so
> than they were originally.  Something to research when I have time...)

SPF works by itself just fine.  SenderID is a specialization of SPF.
Also worth a look is Yahoo's DomainKeys idea.

These are compatible.  GMail, for example, sends all of its email from SPF-verifiable hosts, using DomainKeys-signed headers.

Matthew.van.Eerde (at) hbinc.com                 805.964.4554 x902
Hispanic Business Inc./HireDiversity.com         Software Engineer
perl -e"map{y/a-z/l-za-k/;print}shift" "Jjhi pcdiwtg Ptga wprztg,"