I got an e-mail today from the mailing list claiming that it couldn't
deliver mail to my account. It seems that one of the IP addresses
(18.104.22.168) used to send e-mail from the list doesn't have a reverse
I don't know what the subscriber base to this list does regarding their
e-mail, but I *do* know that there is an increasing number of sites that
are stricter on RFC1912 compliance (things like having a PTR record,
etc.), so maybe the list server's admins should contact their ISP to
avoid being blocked by sites that require RDNS.