Stefan Bauer:
> thank you. seems to be that
>
> if address_verify_negative_refresh_time = 30m, the next attempt to reach a
> specific recipient that is negative in cache, will still get the "old"
> answer from cache if it is not expired by
> address_verify_negative_expire_time. that is default 3d.
I just looked things up (I wrote this code more than 10 years ago!),
and I conclude that you misunderstand the difference between
EXPIRATION time and REFRESH time.
As long as the stored result is not expired, the stored result is
returned to smtpd. That is what expiration means.
After the non-expired result is returned to smtpd, a refresh may
happen when the non-expired result is older than some positive
or negative refresh time. That is what refresh means.
But it would be stupid to block the smtpd while the refresh for a
NON-EXPIRED result is in progress, because then you might just as
well have a very short expire time.
Wietse
