Nikolaos Milas:
> On 4/4/2013 3:38 ??, Wietse Venema wrote:
>
> > # cp /var/lib/postfix/verify_cache.db tempfile.db
> > # postmap -s btree:tempfile.db
>
> Thanks Wietse, it works fine this way:
>
> # postmap -s btree:verify_cache_copy
>
> By the way, is there a way/command to lengthen the validity of all
> current entries in the verify cache?
Configure a larger address_verify_positive_expire_time?
The default is 31 days.
Note that Postfix does not wait until cached information expires.
By default it refreshes cached records after 7 days (the refresh
happens after the user receives email).
Therefore. cached information about active accounts will be valid
for 24..31 days.
> As currently set, our gateway mail server(s) queries the final
> destination (internal) server to verify recipients using:
>
> relay_recipient_maps = <empty>
>
> In case of planned downtime of internal (final destination) mail server,
> I would like to avoid expiration of the gateway server's verify cache
> during the downtime.
How long is your expected downtime? Even it someone receives only
one email per week, they should expire in 24 days.
Wietse
