Thanks a lot Wietse...
i understood that 'address_verify_map  = memcache'  is used to make persistant 
the verify database, but according to your words i was wrrong:  it will make 
memcahe the database itself..
Am i right?
Thanks!
Pete.
    On Thursday, June 2, 2022, 12:05:30 AM GMT+2, Wietse Venema 
<wie...@porcupine.org> wrote:  
 
 Pedro David Marco:
> Hi,
> Please, is there any way? to have a centralized Verify database?? my 
> intention is to reduce the number of probes in Postfix farms...
> Thanks,

You could try https://www.postfix.org/memcache_table.5.html

- Give it enough memory. 

- Be sure to block remote access. 

- Specify "address_verify_cache_cleanup_interval=0" on all
hosts except one (to avoid spikes in memcache load).

    Wietse
  

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