Getting information from the 'verify'-daemon

[Willy Janssen]

Hello,

We're running Postfix 2.5.1 with 'address_verify_negative_cache = yes' 
and 'address_verify_map ='. The information for the negative cache is 
only kept in volatile memory.

Is there a possibility to read this information (negative cache) that is 
used by the verify-daemon. So to create a list of (non-existing) e-mail 
addresses that are tried to deliver mail to.

Or is the only solution to specify a database on disk and get the 
information from there.

--
Willy