[postfix] Reject unlisted senders.

diff --git a/postfix/main.cf b/postfix/main.cf
index 2c78c94bac623fe5133ba35fb146b4c09524a1e3..e6d6217e3900b50fbac1907dfaf214e37ee38180 100644 (file)
--- a/postfix/main.cf
+++ b/postfix/main.cf
@@ -33,6 +33,8 @@ alias_maps = pgsql:/etc/postfix/address_book.cf
 ## Deliver to dovecot.
 mailbox_transport = lmtp:unix:private/dovecot-lmtp
 
+smtpd_reject_unlisted_sender = yes
+
 # Message rewrite
 always_add_missing_headers = yes