Thanks for the explanation, Scott. Bill ----- Original Message ----- From: "R. Scott Perry" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, March 20, 2003 3:59 PM Subject: Re: [Declude.JunkMail] Spaced Out
> > >Its a much more sensitive (strict) version of MAILFROM. Weighted less > >than MAILFROM, it sees things that otherwise get through. I forget what > >it is, so Scott would have to explain what that actually is. > > The standard MAILFROM test will check to see if the domain on the return > address has either an MX or A record in DNS. So if an E-mail fails the > MAILFROM test, the return address can't receive mail. > > The strict version (defined with the "mailfromstrict" test type) only > checks for the MX record. Although a domain with an A record can receive > mail (if there is a mailserver at the IP corresponding to the A record for > the domain), it isn't advertising that it allows E-mail. It will have more > false positives -- people seem to think there isn't a problem with having > no MX record, since the RFCs do require mailservers to attempt to send to > the A record if there is no MX record. > -Scott > > --- > [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] > > --- > This E-mail came from the Declude.JunkMail mailing list. To > unsubscribe, just send an E-mail to [EMAIL PROTECTED], and > type "unsubscribe Declude.JunkMail". The archives can be found > at http://www.mail-archive.com. > --- [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type "unsubscribe Declude.JunkMail". The archives can be found at http://www.mail-archive.com.
