On Donnerstag, 24. Mai 2007, Bogdan-Andrei Iancu wrote:
Hi Bodin,
that's because of the blacklists - openser "learns" the failed
destinations (like the 503 replied) and block them for some time (4
minutes) to prevent useless processing.
You can disable this auto-learning for blacklists:
disable_dns_blacklist=yes
To warm-up an old discussion about this feature:
i think this should be really disabled by default, because of user confusion
and possible security issues.
Cheers,
Henning