Hello,
Today I signed up with one of the mailing lists on sourceforge and
sent email to sign up with the host. Even though everything worked
fine, I still got a temporary error from the sourceforge.net[Attached].
Now this behavior may be valid for IPv4 hosts however the sending MTA
(in this case leviathan.lucifer.at) has a valid AAAA pointer and a MX
record. [Below]
IMHO, the receiving MTA should also check if the sending host does
have an AAAA record and not only an A record.
Any comments?
Regards,
-Kevin
PS - I am CC'g marc@ as I've seen a few posts re: sourceforge's mail
servers on exim-users@. Marc, I apologize if this is not the case...
--------dig aaaa leviathan.lucifer.at
; <<>> DiG 9.1.3 <<>> aaaa leviathan.lucifer.at
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 16802
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 1
;; QUESTION SECTION:
;leviathan.lucifer.at. IN AAAA
;; ANSWER SECTION:
leviathan.lucifer.at. 7190 IN AAAA
3ffe:1200:3028:8d6b:a00:20ff:fefd:5ba0
;; AUTHORITY SECTION:
lucifer.at. 7190 IN NS ns5.zoneedit.com.
lucifer.at. 7190 IN NS ns1.zoneedit.com.
;; ADDITIONAL SECTION:
ns1.zoneedit.com. 170299 IN A 207.228.252.101
--------dig mx leviathan.lucifer.at
; <<>> DiG 9.1.3 <<>> mx leviathan.lucifer.at
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 5249
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 2, ADDITIONAL: 3
;; QUESTION SECTION:
;leviathan.lucifer.at. IN MX
;; ANSWER SECTION:
leviathan.lucifer.at. 7019 IN MX 5
mail.open-systems.org.
leviathan.lucifer.at. 7019 IN MX 10
mail.greenseek.net.
leviathan.lucifer.at. 7019 IN MX 0
leviathan.lucifer.at.
;; AUTHORITY SECTION:
lucifer.at. 7019 IN NS ns1.zoneedit.com.
lucifer.at. 7019 IN NS ns5.zoneedit.com.
;; ADDITIONAL SECTION:
leviathan.lucifer.at. 7019 IN AAAA
3ffe:1200:3028:8d6b:a00:20ff:fefd:5ba0
mail.open-systems.org. 36897 IN A 24.76.172.29
ns1.zoneedit.com. 170128 IN A 207.228.252.101
--
How come only your friends step on your new white sneakers?
Security Violations
=-=-=-=-=-=-=-=-=-=
Dec 5 13:55:54 satan exim[1557]: 2001-12-05 13:55:54 16BjyE-0005Yd-00 SMTP
error from remote mailer after end of data: host mail.sourceforge.net
[216.136.171.198]: 451-Envelope sender verification failed\\n451 rejected:
temporarily unable to verify envelope sender address
<kevin@???>
(There was a temporary failure while looking up the hostname in DNS, it was
unreachable, or the mail server(s) for that hostname is/are currently not
responding and your address couldn't be verified. You may be using an internal
hostname that's not reachable from the internet and if so, bounces can't reach
you as a result. You should setup an MX record for it, or masquerade your
domain to something that does accept mail from the internet. This failure is
temporary)
