Re: [exim] Disk failure => 5xx error code

> Therefore, I believe that the
> original problem is a failing in the interface to tcpwrappers because it
> can't say "unable to check at present, please give a temporary error".
> (This is no doubt because in the uses for which it was designed, the
> only requirement was for yes/no rather than yes/no/maybe.)

Yes, I took a look through the source to tcpwrappers, there's clearly
nothing to deal with this sort of situation which is why all I could
suggest was zeroing errno before the call and checking for a few "drop
dead" values afterwards. Not much, but all we can do.

John