[postfix-es] bloquear usuarios que no son del dominio que envian a mi dominio

[Rodrigo Cortes Cano]

Eso, como puedo evitar que lleguen correos a mi dominio de usuarios que
no son de el ?

esta es parte de mi conf

alguna sugerencia?


smtpd_helo_restrictions = reject_invalid_hostname

smtpd_recipient_restrictions = permit_sasl_authenticated,
permit_mynetworks, check_recipient_access hash:/etc/postfix/local_users,
reject_unauth_destination, reject_rhsbl_recipient dsn.rfc-ignorant.org,
reject_unknown_recipient_domain, reject_unknown_sender_domain,
reject_unauth_pipelining, reject_invalid_hostname,
reject_unauth_destination, reject_non_fqdn_recipient

smtpd_sender_restrictions = hash:/etc/postfix/access,
reject_unknown_sender_domain, reject_non_fqdn_sender,
reject_rhsbl_sender dsn.rfc-ignorant.org ,reject_sender_login_mismatch

smptd_mumble_restrictions = reject_unknown_sender_domain,
check_sender_mx_access hash:/etc/postfix/mx_access

smtpd_client_restrictions = permit_sasl_authenticated, reject_rbl_client
relays.ordb.org, reject_rhsbl_client dsn.rfc-ignorant.org

smtpd_sasl_security_options = noanonymous

smtpd_sender_login_maps = hash://etc/postfix/sender

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