Recipient Verification

[Peter Fraser]

Hi All I am having a problem with bad email address listings so I am trying to implement the recipient address verification. Below are the relevant settings in my main.cf file. I notice though that although there are no errors in my log file, I can't find a verify_cache.db file anywhere. How do I know if recipient verification is working?   I am using postfix-3.5.8,1 on FreeBSD 12.2   address_verify_map = lmdb:$data_directory/verify_cache address_verify_negative_expire_time = 30s address_verify_negative_refresh_time = 30s address_verify_positive_expire_time = 12h address_verify_positive_refresh_time = 6h   smtpd_recipient_restrictions =    reject_non_fqdn_recipient,    reject_unknown_recipient_domain,    check_client_access hash:/usr/local/etc/postfix/internal_networks,    check_sender_access hash:/usr/local/etc/postfix/not_our_domain_as_sender,    permit_mynetworks,    reject_unauth_destination,    reject_unknown_client_hostname,    reject_unknown_reverse_client_hostname,    reject_unverified_recipient,    permit   My Data Directory from postconf -d is /var/db/postfix   Any help would be appreciated.