From: Jorey Bump (no email)
Date: Fri Sep 15 2006 - 21:11:35 EDT
Wietse Venema wrote:
> Jorey Bump:
>> Justin Piszcz wrote:
>>> Sep 15 09:40:28 box postfix/smtp: warning: reply length 4151 >
>>> buffer length 4096 for name=retailsalesreports.com type=MX
>>> Is there any concern here? I know its a spammer obviously but should
>>> postfix allow for greater buffer lengths?
>> New versions do. Upgrade, if you can.
> If you are suggesting that there is a buffer overflow problem,
> then I can assure you there is none, assuming that the system
> library isn't broken.
I know I wasn't suggesting that, but to be clear:
Cleanup: the DNS lookup code now accommodates name server
replies longer than 4 kbytes, with a hard upper limit of
32kbytes. For safety reasons, the number of MX host addresses
that the SMTP client will try was reduced from unlimited
to just 5, so that Postfix won't spend forever trying to
connect to dozens and dozens of bogus MX hosts. Files: