On Fri, 5 Sep 2003, Bill Campbell wrote: > On Fri, Sep 05, 2003, Swapana Ghosh wrote: > >Thanks you very much. > > > >-Swapna > > > >> > >> Reverse lookup failed? the zone for xxx.xxx.xx.35 (and others) doesn't > >> have any PTR records for that ip or the zone does not exist on any dns > >> server. > > BTW: This is an excellent criteria for spam blocking, particularly since > AOL is now doing it which makes it much easier to tell an ISP to get their > sh*t together and fix their DNS. If an ISP can't get the rDNS configured > for the mail servers, they probably shouldn't be running them. >
Excellent criteria, If you could get a response from the domain's admin after mailing them to let them know their DNS is broken. And your customers didn't get business critical email from those broken domains. There are a lot of broken but valid dns domains out there. Been there, done that, got the teeth marks on my butt. _______________________________________________ Linux-users mailing list [EMAIL PROTECTED] Unsubscribe/Suspend/Etc -> http://www.linux-sxs.org/mailman/listinfo/linux-users
