[exim] Sender verify failed

Hiya all,

We currently use callouts to verify mail is good. However it seems
that some mail servers out there are not responding to callouts (non
RFC compliant? ). Whatever the reason, this mail is actually good and
we need to receive it.

Has anyone come across this kind of problem before and what methods do
you guys use? We currently have a list of IPs that we accept relay
from regardless, and we currently have to add each 'problem' host each
time one pops up.

Clear as mud huh, any takers tho?

I might see some of you guys in Cambridge in July..

Doug