On Tue, 2022-01-04 at 12:41 -0500, jun1art1 via Info wrote: > Hi Misha, > Thank you for your help. It is using postfix smtp. > Do you know by chance how to disallow the mail relaying? This thread is now off-topic; but start with smtpd_client_restrictions = check_client_access hash:/etc/postfix/access permit_sasl_authenticated reject_unauth_destination Everything should have to authenticate [at least username+password] in order to send e-mail. -- Adam Tauno Williams <mailto:awilliam@xxxxxxxxxxxxx> GPG D95ED383 Systems Administrator, Python Developer, LPI / NCLA ------------------------------------------ Cyrus: Info Permalink: https://cyrus.topicbox.com/groups/info/Taf7721e06f8bc4fb-Meb5724f27796e19e1a39d939 Delivery options: https://cyrus.topicbox.com/groups/info/subscription
