チケット更新でメール送信

trac.ini

[notification]
always_notify_owner = false
always_notify_reporter = false
always_notify_updater = false
smtp_always_cc = to_address
smtp_enabled = true
smtp_from = from_address
smtp_password =
smtp_port = 25
smtp_replyto = reply_address
smtp_server = localhost
smtp_user =

として、メール送信にローカルmtaを使用。

チケットを更新すると、

Warning: The change has been saved, but an error occurred while sending notifications: {u'to_address': (554, '5.7.1 <to_address>: Relay access denied')}

というエラーが出て
/var/log/maillog を見ると

Dec  3 12:29:27 hostname postfix/smtpd[20182]: connect from hostname [127.0.0.1]
Dec  3 12:29:27 hostname postfix/smtpd[20182]: NOQUEUE: reject: RCPT from hostname [127.0.0.1]: 554 5.7.1 <to_address>: Relay access denied; from=<from_address> to=<to_address> proto=ESMTP helo=<fqdn>
Dec  3 12:29:27 hostname postfix/smtpd[20182]: lost connection after RSET from hostname [127.0.0.1]
Dec  3 12:29:27 hostname postfix/smtpd[20182]: disconnect from hostname [127.0.0.1]

と出てる。

/etc/postfix/main.cf を確認

mynetworks = 192.168.x.x/24

oh...
で、こーする。

mynetworks = 127.0.0.1/32, 192.168.x.x/24