Am Freitag, den 08.05.2020, 15:51 -0500 schrieb Thomas Strike: > Matus: your right. I misused the word server. I thought that this was > the test message being sent with gmail because every time I sent a > new test, this IP came up in the maillog. > This turns out to be a Russian IP. Geez, Louise! I have Russia trying > to hack me. >
Just an idea On postfix itself you can use regular blocklists to prevent such obvious IPs. For the other services like imap etc. it helps to use fail2ban.
