Hello, I see he tried to log in "authentication failed" and failed , but the IP is blacklisted, please why? should it not be blocked before.
-- OS Debian 10.11 - Postfix - mail_version = 3.4.14 -- Main.cf postscreen_access_list = permit_mynetworks, cidr:/etc/postfix/whitelistCIDR+IP, cidr:/etc/postfix/blacklistIP -- BlacklistIP root@mail:/etc/postfix# cat blacklistIP | grep 5.188.206.199 5.188.206.199 REJECT -- Mail.log Jan 14 07:17:56 nmail postfix/smtps/smtpd[7809]: warning: unknown[5.188.206.199]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Jan 14 07:17:57 nmail postfix/smtps/smtpd[7809]: lost connection after AUTH from unknown[5.188.206.199]
