On Sun, Aug 28, 2005 at 02:43:20PM -0700, Marc Perkel wrote:
>> # Deny unless the sender address can be verified.
>>
>> require verify = sender
>>
>>
>You're going to get a lot of false positives if you do this because if
>there's a server problem in verification of the sebder it's going to bounce.
>
>I wonder if there is a way to distinguish a DNS error from a domain that
>doesn't exist?
5xx on nonexistent sender domain requires NXDOMAIN to be returned for that
domain. If there's a temporary error - say SERVFAIL, it'd be a 4xx error.
The sending MTA can retry later and if the dns resolution fixes itself /
gets fixed, email will get through just fine
srs
--
linux@??? (Suresh Ramasubramanian)
jaharkes@ravel:/usr/src$ mv linux Gnu/Linux
mv: cannot move `linux' to `Gnu/Linux': No such file or directory
jaharkes @ cs.cmu.edu in reply to RMS on linux.kernel
