When I am trying to send emails from my email server I get this notification in journalctl
Jun 24 19:41:01 zuhairahmad.com sshd[5583]: Invalid user pluto from 104.242.246.34 port 41995
Jun 24 19:41:01 zuhairahmad.com sshd[5583]: pam_unix(sshd:auth): check pass; user unknown
Jun 24 19:41:01 zuhairahmad.com sshd[5583]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.242.246.34
Jun 24 19:41:03 zuhairahmad.com sshd[5583]: Failed password for invalid user pluto from 104.242.246.34 port 41995 ssh2
I have used Postfix to set up my server and have worked out that there is something wrong with the permissions involving changing the settings in /etc/pam.d but I’m stumped tbh Any help would be greatly appreciated (using Debian 10 btw if that changes anything)