* Bulent Malik <bma...@ihlas.net.tr>: > There is a tool named empf ( email policy framework ) on qmail. How can I do > its functions on postfix?
http://www.inter7.com/?page=empf During an SMTP session, when a sender identifies themselves, either via SMTP_AUTH, or via the message envelope, as well as a recipient, eMPF loads applicable message policies to determine if the sender is allowed to message the sender, and if the recipient is allowed to receive mail from the sender. --> You need a custom policy server for that However, if SMTP authentication is required by local users, eMPF can prevent remote users from masquerading as local users to bypass policies --> You can use smtpd_sender_login_maps and the restriction reject_authenticated_sender_login_mismatch to prebent users from faking sender addresses -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebra...@charite.de | http://www.charite.de
