On Aug 28, 2009, at 5:50 PM, Noel Jones wrote:
Mail from yahoo.com is now rejected with:
Aug 28 16:24:05 mgate2 postfix/smtpd[53002]: NOQUEUE: reject: RCPT
from web34202.mail.mud.yahoo.com[66.163.178.117]: 554 5.7.1
<web34202.mail.mud.yahoo.com>: Helo command rejected: Malformed DNS
server reply; from=<yu...@yahoo.com> to=<u...@vbhcs.org> proto=SMTP
helo=<web34202.mail.mud.yahoo.com>
If we look up the helo name, we see:
# host web34202.mail.mud.yahoo.com
web34202.mail.mud.yahoo.com has address 66.163.178.117
web34202.mail.mud.yahoo.com mail is handled by 0 .
Apparently the bogus MX record triggers the reject. It also looks
as if all of Yahoo!'s mail servers are configured with a similar MX
record.
My guess is that this record is malformed because 0 is not a valid IP
address. Sounds like Yahoo has some issues to work out.
