Hello all, I need to do the following: local user "mary@company.net" is not allowed to send or receive mail from outside the company, but should be able to send and receive mail internally. For some reason, when I do this, no one can send or receive externally. What am I missing? This is what I have. In main.cf: smtpd_recipient_restrictions = check_sender_access hash:/etc/postfix/restricted_senders check_recipient_access hash:/etc/postfix/restricted_recipients reject_unauth_destination permit_mynetworks check_relay_domains mtpd_restriction_classes = local_only local_only = check_recipient_access hash:/etc/postfix/local_domains, check_sender_access hash:/etc/postfix/local_domains, reject restricted_senders: mary@company.net local_only restricted_recipients: mary@company.net local_only local_domains: company.net OK Your advice would be appreciated. Thank you -- Kind regards Hans du Plooy hansdp at newingtoncs dot co dot za