This is my set up and I wanted to add reject_unknown_sender_domain
statement.

Can I include it in this paragraph below?
Or do I have to include it within smtpd_sender_restrictions? Thanks


smtpd_recipient_restrictions =
permit_mynetworks,
reject_unauth_destination
check_recipient_access dbm:$config_directory/recipient_access,
check_client_access dbm:$config_directory/access,
check_client_access dbm:$config_directory/helo_access,
reject_non_fqdn_hostname,
reject_invalid_hostname,
reject_rbl_client list.dsbl.org,
reject_rbl_client relays.ordb.org,
reject_rbl_client bl.spamcop.net,
check_sender_access dbm:$config_directory/spammers
check_sender_access dbm:$config_directory/junk
check_sender_access dbm:$config_directory/freemail_access,
reject_unauth_pipelining
# End of new


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