Came across something odd today. I was trying to sign up at fuelly.com, but my Postfix mail server is rejecting their signup confirmation e-mail with the following:
Aug 8 12:03:47 kyzoku postfix/smtpd[38670]: NOQUEUE: reject: RCPT from fuelly.com[174.133.216.50]: 450 4.1.8 <[EMAIL PROTECTED]>: Sender address rejected: Malformed DNS server reply; from=<[EMAIL PROTECTED]> to=<[EMAIL PROTECTED]> proto=ESMTP helo=<fuelly.com> I decided to do some digging into their DNS, and found an odd-looking MX record: $ dig fuelly.com mx +short 5 . I've never seen the root used as a mail exchanger before, and am guessing this is seen as a bad answer. At the very least, . has no A or AAAA records. Is this some sort of odd anti-spam thing? Or is the domain just set up badly? -- Chip Marshall <[EMAIL PROTECTED]> http://weblog.2bithacker.net/ KB1QYW PGP key ID 43C4819E v4sw5PUhw4/5ln5pr5FOPck4ma4u6FLOw5Xm5l5Ui2e4t4/5ARWb7HKOen6a2Xs5IMr2g6CM
signature.asc
Description: Digital signature
