The easiet/surest way is to use ASMTP = only relay if the sender can authenticate. Using IP restrictions to relay can be abused if network is compromised. This is a generic solution which is applicable to ALL situations - until one of your users uses a useless password, then you are screwed! On 26 July 2016 at 22:50, Dennis Mugaya via skunkworks < skunkworks@lists.my.co.ke> wrote:
Hi My mail server(squirrel mail,postfix and dovecot) is relaying messages from other user accounts that are not registered in my server how do i stop these relay messages. Its my first time to configure a mail server kindly assist am learning.
Regards
--
*Dennis MugayaNetwork Administrator*
_______________________________________________ skunkworks mailing list skunkworks@lists.my.co.ke ------------ List info, subscribe/unsubscribe http://lists.my.co.ke/cgi-bin/mailman/listinfo/skunkworks ------------
Skunkworks Rules http://my.co.ke/phpbb/viewtopic.php?f=24&t=94 ------------ Other services @ http://my.co.ke
-- Best regards, Odhiambo WASHINGTON, Nairobi,KE +254 7 3200 0004/+254 7 2274 3223 "Oh, the cruft."