On Sun, 8 Feb 2004, Paul Vixie wrote: > > ... What do you suggest otherwise-responsible operators like me do, > > when after begging SBC for two years, my reverse DNS still isn't > > delegated correctly? > > or send SBC a copy of RFC 2317 every hour via a crontab. might not be > very effective but it would sure get you talked about. since you're a > customer they can't accuse you of spamming them...
A Google search turned up http://www.unixwiz.net/techtips/pacbell-rdns.html But wouldn't this defeat the very behavior you are depending on to block mail? If every network administrator had reverse DNS for every IP address, your check for systems lacking rDNS wouldn't work. Or do we actually want a Fortune 1000 network. Direct communications are prohibited between most users. If you are not a Fortune 1000 network, you must forward your email through an approved provider which will check the mail for unauthorized content. Suppose AOL, MNN, Yahoo, etc agree to accept mail from each other and not from other people. This is pretty much how the world worked from 1980-1990. CompuServe, MCIMail, The Source, Delphi, etc.
