Apr 22 05:27:14 mail.srvfarm.net postfix/smtpd[3205642]: NOQUEUE: reject: RCPT from unknown[69.94.158.72]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 22 05:27:20 mail.srvfarm.net postfix/smtpd[3192594]: NOQUEUE: reject: RCPT from unknown[69.94.158.72]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 22 05:27:45 mail.srvfarm.net postfix/smtpd[3206783]: NOQUEUE: reject: RCPT from unknown[69.94.158.72]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 22 05:29:13 mail.srvfarm.net postfix/smtpd[3206782]: NOQUEUE: reject:

Apr 18 05:24:17 web01.agentur-b-2.de postfix/smtpd[1295931]: NOQUEUE: reject: RCPT from unknown[69.94.158.72]: 554 5.7.1 Service unavailable; Client host [69.94.158.72] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBLCSS; from= to= proto=ESMTP helo=
Apr 18 05:24:18 web01.agentur-b-2.de postfix/smtpd[1295932]: NOQUEUE: reject: RCPT from unknown[69.94.158.72]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 18 05:24:18 web01.agentur-b-2.de postfix/smtpd[1295930]: NOQUEUE: reject: RCPT from unknown[69.94.158.72]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 18 05:24:57 web01.agentur-b-2.de postfix/smtpd[1295931]: NOQUEUE: reject: RCPT from unknown[69.94

SpamScore above: 10.0

Jun 22 14:41:26 mail.srvfarm.net postfix/smtpd[4156079]: NOQUEUE: reject: RCPT from medical.ifixheal.com[69.94.158.125]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun 22 14:41:26 mail.srvfarm.net postfix/smtpd[4156127]: NOQUEUE: reject: RCPT from medical.ifixheal.com[69.94.158.125]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun 22 14:41:26 mail.srvfarm.net postfix/smtpd[4152946]: NOQUEUE: reject: RCPT from unknown[69.94.158.125]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun 22 14:41:27 mail.srvfarm.net postfix/smtpd[4152191]: NOQUEUE: reject: RCPT from u

Jun 17 05:24:07 web01.agentur-b-2.de postfix/smtpd[560626]: NOQUEUE: reject: RCPT from unknown[69.94.158.120]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Jun 17 05:27:51 web01.agentur-b-2.de postfix/smtpd[560626]: NOQUEUE: reject: RCPT from unknown[69.94.158.120]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Jun 17 05:27:58 web01.agentur-b-2.de postfix/smtpd[562233]: NOQUEUE: reject: RCPT from unknown[69.94.158.120]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Jun 17 05:28:11 web01.agentur-b-2.de postfix/smtpd[560625]: NOQUEUE: reject: RCPT from unknown[69.94.158.120]: 45

Jun  8 05:42:37 mail.srvfarm.net postfix/smtpd[671306]: NOQUEUE: reject: RCPT from unknown[69.94.158.91]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  8 05:43:10 mail.srvfarm.net postfix/smtpd[673032]: NOQUEUE: reject: RCPT from unknown[69.94.158.91]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  8 05:43:34 mail.srvfarm.net postfix/smtpd[673035]: NOQUEUE: reject: RCPT from unknown[69.94.158.91]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  8 05:46:47 mail.srvfarm.net postfix/smtpd[671463]: NOQUEUE: reject: RCPT from unknown[69.94.158.91]: 450 4.1.8 

Jun  5 15:31:48 mail.srvfarm.net postfix/smtpd[3113570]: NOQUEUE: reject: RCPT from unknown[69.94.158.78]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  5 15:32:18 mail.srvfarm.net postfix/smtpd[3109485]: NOQUEUE: reject: RCPT from unknown[69.94.158.78]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  5 15:32:26 mail.srvfarm.net postfix/smtpd[3109485]: NOQUEUE: reject: RCPT from unknown[69.94.158.78]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  5 15:36:04 mail.srvfarm.net postfix/smtpd[3113153]: NOQUEUE: reject: RCPT from unknown[69.94.158.78]: 450 4.1.8 

Jun  5 17:35:49 mail.srvfarm.net postfix/smtpd[3156527]: NOQUEUE: reject: RCPT from unknown[69.94.158.83]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  5 17:36:02 mail.srvfarm.net postfix/smtpd[3151339]: NOQUEUE: reject: RCPT from unknown[69.94.158.83]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  5 17:38:26 mail.srvfarm.net postfix/smtpd[3155924]: NOQUEUE: reject: RCPT from unknown[69.94.158.83]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  5 17:42:09 mail.srvfarm.net postfix/smtpd[3156526]: NOQUEUE: reject: RCPT from unknown[69.94.158.83]: 450 4.1.8 : Send

Jun  4 13:33:39 web01.agentur-b-2.de postfix/smtpd[178713]: NOQUEUE: reject: RCPT from unknown[69.94.158.116]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Jun  4 13:35:57 web01.agentur-b-2.de postfix/smtpd[177278]: NOQUEUE: reject: RCPT from unknown[69.94.158.116]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Jun  4 13:36:10 web01.agentur-b-2.de postfix/smtpd[177278]: NOQUEUE: reject: RCPT from unknown[69.94.158.116]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Jun  4 13:40:07 web01.agentur-b-2.de postfix/smtpd[181736]: NOQUEUE: reject: RCPT from unknown[69.94.158.116]: 450 4.7.1 : He

Jun  1 13:36:25 mail.srvfarm.net postfix/smtpd[577447]: NOQUEUE: reject: RCPT from unknown[69.94.158.68]: 554 5.7.1 Service unavailable; Client host [69.94.158.68] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBLCSS; from= to= proto=ESMTP helo=
Jun  1 13:36:54 mail.srvfarm.net postfix/smtpd[576967]: NOQUEUE: reject: RCPT from unknown[69.94.158.68]: 554 5.7.1 Service unavailable; Client host [69.94.158.68] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBLCSS; from= to= proto=ESMTP helo=
Jun  1 13:36:59 mail.srvfarm.net postfix/smtpd[576966]: NOQUEUE: reject: RCPT from unknown[69.94.158.68]: 554 5.7.1 Service unavailable; Client host [69.94.158.68] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBLCSS; from= to= proto=ESMTP helo=

May 24 05:02:36 web01.agentur-b-2.de postfix/smtpd[509182]: NOQUEUE: reject: RCPT from unknown[69.94.158.92]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
May 24 05:05:46 web01.agentur-b-2.de postfix/smtpd[507167]: NOQUEUE: reject: RCPT from unknown[69.94.158.92]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
May 24 05:10:08 web01.agentur-b-2.de postfix/smtpd[502191]: NOQUEUE: reject: RCPT from unknown[69.94.158.92]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
May 24 05:12:05 web01.agentur-b-2.de postfix/smtpd[502191]: NOQUEUE: reject: RCPT from unknown[69.94.158.92]: 450 4.7.1 : Helo command rejected: Host

Email Spam

Apr 30 22:24:29 web01.agentur-b-2.de postfix/smtpd[308782]: NOQUEUE: reject: RCPT from unknown[69.94.158.68]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 30 22:25:27 web01.agentur-b-2.de postfix/smtpd[311470]: NOQUEUE: reject: RCPT from unknown[69.94.158.68]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 30 22:27:15 web01.agentur-b-2.de postfix/smtpd[314121]: NOQUEUE: reject: RCPT from unknown[69.94.158.68]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 30 22:28:36 web01.agentur-b-2.de postfix/smtpd[311518]: NOQUEUE: reject: RCPT from unknown[69.94.158.68]: 450 4.7.1 : Helo command rejected: Host n

Apr 29 14:28:32 mail.srvfarm.net postfix/smtpd[166895]: NOQUEUE: reject: RCPT from unknown[69.94.158.86]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 29 14:30:31 mail.srvfarm.net postfix/smtpd[148816]: NOQUEUE: reject: RCPT from unknown[69.94.158.86]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 29 14:31:05 mail.srvfarm.net postfix/smtpd[169893]: NOQUEUE: reject: RCPT from unknown[69.94.158.86]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 29 14:31:29 mail.srvfarm.net postfix/smtpd[169892]: NOQUEUE: reject: RCPT from unknown[69.94.158.86]: 450 4.1.8 : Sender add

2020-04-25 1jSBUh-00034G-NK H=medical.ifixheal.com \(medical.porkaspk.com\) \[69.94.158.125\] rejected **REMOVED** : REJECTED - You seem to be a spammer!
2020-04-25 1jSCC3-00038E-DK H=medical.ifixheal.com \(medical.porkaspk.com\) \[69.94.158.125\] rejected **REMOVED** : REJECTED - You seem to be a spammer!
2020-04-25 1jSCC3-00038F-DK H=medical.ifixheal.com \(medical.porkaspk.com\) \[69.94.158.125\] rejected **REMOVED** : REJECTED - You seem to be a spammer!

Apr 23 10:12:23 web01.agentur-b-2.de postfix/smtpd[128143]: NOQUEUE: reject: RCPT from unknown[69.94.158.98]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 23 10:13:59 web01.agentur-b-2.de postfix/smtpd[131327]: NOQUEUE: reject: RCPT from unknown[69.94.158.98]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 23 10:15:25 web01.agentur-b-2.de postfix/smtpd[128143]: NOQUEUE: reject: RCPT from unknown[69.94.158.98]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 23 10:16:17 web01.agentur-b-2.de postfix/smtpd[128143]: NOQUEUE: reject: RCPT from unknown[69.94.158.98]: 450

Apr 22 22:41:32 mail.srvfarm.net postfix/smtpd[3565326]: NOQUEUE: reject: RCPT from unknown[69.94.158.117]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 22 22:41:32 mail.srvfarm.net postfix/smtpd[3564410]: NOQUEUE: reject: RCPT from unknown[69.94.158.117]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 22 22:41:32 mail.srvfarm.net postfix/smtpd[3565329]: NOQUEUE: reject: RCPT from unknown[69.94.158.117]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 22 22:41:32 mail.srvfar

Aug  8 10:22:21 nextcloud sshd\[7314\]: Invalid user in from 139.59.63.244
Aug  8 10:22:21 nextcloud sshd\[7314\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.59.63.244
Aug  8 10:22:23 nextcloud sshd\[7314\]: Failed password for invalid user in from 139.59.63.244 port 43830 ssh2
...

[portscan] Port scan

Aug  8 06:41:19 SilenceServices sshd[16299]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=66.70.250.55
Aug  8 06:41:21 SilenceServices sshd[16299]: Failed password for invalid user testuser from 66.70.250.55 port 59700 ssh2
Aug  8 06:47:56 SilenceServices sshd[21670]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=66.70.250.55

Aug  8 10:40:08 debian sshd\[22708\]: Invalid user leroy from 165.22.242.162 port 54870
Aug  8 10:40:08 debian sshd\[22708\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=165.22.242.162
...

Brute force attempt

Automatic report - Banned IP Access

Aug  8 10:09:36 s1 sshd\[21991\]: User root from 112.85.42.227 not allowed because not listed in AllowUsers
Aug  8 10:09:37 s1 sshd\[21991\]: Failed password for invalid user root from 112.85.42.227 port 22307 ssh2
Aug  8 10:09:37 s1 sshd\[21991\]: Failed password for invalid user root from 112.85.42.227 port 22307 ssh2
Aug  8 10:09:37 s1 sshd\[21991\]: Failed password for invalid user root from 112.85.42.227 port 22307 ssh2
Aug  8 10:10:40 s1 sshd\[22915\]: User root from 112.85.42.227 not allowed because not listed in AllowUsers
Aug  8 10:10:40 s1 sshd\[22915\]: Failed password for invalid user root from 112.85.42.227 port 64107 ssh2
...

SSH authentication failure x 6 reported by Fail2Ban
...

pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.220.102.4  user=root
Failed password for root from 185.220.102.4 port 46799 ssh2
Invalid user apc from 185.220.102.4 port 40293
pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.220.102.4
Failed password for invalid user apc from 185.220.102.4 port 40293 ssh2

Sniffing for wp-login

Aug  8 11:10:02 thevastnessof sshd[11615]: Failed password for invalid user hand from 138.68.57.194 port 57152 ssh2
Aug  8 11:21:09 thevastnessof sshd[11814]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.68.57.194
...

Automatic report - Banned IP Access

Aug  8 09:21:07 herz-der-gamer sshd[24214]: Invalid user ts3 from 195.3.147.47 port 6746
...

port scan and connect, tcp 23 (telnet)

Brute force SMTP login attempts.