I run my own smtpd server, direct:
with the following, partial output, smtpd.conf
The server works fine, according to me&I I can communicate and exchange email with smtpd servers world-wide.
But, I do get flooded with unexpected connections (all day&night), only from these 2 IP(s) that belong to gtt.net
I wonder why?
11.2-RELEASE FreeBSD with OpenSMTPD 5.9.2p1 – in jail
with the following, partial output, smtpd.conf
Code:
listen on localhost port 25
listen on em0 port 587 tls pki mydomain.com hostname mydomain.com auth-optional
listen on em0 smtps pki mydomain.com hostname mydomain.com auth
The server works fine, according to me&I I can communicate and exchange email with smtpd servers world-wide.
But, I do get flooded with unexpected connections (all day&night), only from these 2 IP(s) that belong to gtt.net
Code:
Apr 21 19:01:09 webhost smtpd[48748]: smtp-in: Received disconnect from session 245cf35649a290f6
Apr 21 19:05:50 webhost smtpd[48748]: smtp-in: New session 245cf3594b63769b from host 185.234.217.188 [185.234.217.188]
Apr 21 19:05:51 webhost smtpd[48748]: smtp-in: Failed command on session 245cf3594b63769b: "AUTH LOGIN" => 503 5.5.1 Invalid command: Command not supported
Apr 21 19:05:51 webhost smtpd[48748]: smtp-in: Received disconnect from session 245cf3594b63769b
Apr 21 19:07:22 webhost smtpd[48748]: smtp-in: New session 245cf35c4f541cf6 from host 185.234.216.164 [185.234.216.164]
Apr 21 19:07:23 webhost smtpd[48748]: smtp-in: Failed command on session 245cf35c4f541cf6: "AUTH LOGIN" => 503 5.5.1 Invalid command: Command not supported
Apr 21 19:07:23 webhost smtpd[48748]: smtp-in: Received disconnect from session 245cf35c4f541cf6
Apr 21 19:12:01 webhost smtpd[48748]: smtp-in: New session 245cf35f9ed36b77 from host 185.234.217.188 [185.234.217.188]
Apr 21 19:12:02 webhost smtpd[48748]: smtp-in: Failed command on session 245cf35f9ed36b77: "AUTH LOGIN" => 503 5.5.1 Invalid command: Command not supported
Apr 21 19:12:02 webhost smtpd[48748]: smtp-in: Received disconnect from session 245cf35f9ed36b77
Apr 21 19:13:33 webhost smtpd[48748]: smtp-in: New session 245cf36277fa40e6 from host 185.234.216.164 [185.234.216.164]
Apr 21 19:13:33 webhost smtpd[48748]: smtp-in: Failed command on session 245cf36277fa40e6: "AUTH LOGIN" => 503 5.5.1 Invalid command: Command not supported
I wonder why?
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