Re: mail from external servers connecting but timing out after tls established. t.s.
>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. I have all filtering that I know of off right now. I am just trying to establish incoming communication with other SMTP clients right now. Once I get SMTPD services running and delivering incoming messages to the virtual mailboxes, I will work on fetching the mail through dovecot. Then at last I'll address blacklisting and spam after I get my server basically working.
Re: mail from external servers connecting but timing out after tls established. t.s.
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.
Re: mail from external servers connecting but timing out after tls established. t.s.
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.
Re: mail from external servers connecting but timing out after tls established. t.s.
On 08.05.20 13:01, Thomas Strike wrote: Subject: mail from external servers connecting but timing out after tls established. t.s. External smtp servers time out after tls v1.2 is established. the following is from the maillog; May 8 17:40:48 sleepyvalley postfix/smtps/smtpd[17534]: connect from unknown[185.50.149.12] On 08.05.20 20:57, Matus UHLAR - fantomas wrote: remote servers don't connect to smtps port. These are remote clients, guessing passwords. and this address block looks familiar to me, ... apparently abusers I set up certificates with letsincrypt. If these crets are wrong, would that cause this type of behavior? no. -- Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/ Warning: I wish NOT to receive e-mail advertising to this address. Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. "Two words: Windows survives." - Craig Mundie, Microsoft senior strategist "So does syphillis. Good thing we have penicillin." - Matthew Alton
Re: mail from external servers connecting but timing out after tls established. t.s.
On 08.05.20 13:01, Thomas Strike wrote: Subject: mail from external servers connecting but timing out after tls established. t.s. External smtp servers time out after tls v1.2 is established. the following is from the maillog; May 8 17:40:48 sleepyvalley postfix/smtps/smtpd[17534]: connect from unknown[185.50.149.12] remote servers don't connect to smtps port. These are remote clients, guessing passwords. and this address block looks familiar to me, I set up certificates with letsincrypt. If these crets are wrong, would that cause this type of behavior? no. -- Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/ Warning: I wish NOT to receive e-mail advertising to this address. Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. My mind is like a steel trap - rusty and illegal in 37 states.
