Mar  7 05:28:49 mail.srvfarm.net postfix/smtpd[2593144]: NOQUEUE: reject: RCPT from unknown[69.94.135.207]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar  7 05:28:49 mail.srvfarm.net postfix/smtpd[2592950]: NOQUEUE: reject: RCPT from unknown[69.94.135.207]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar  7 05:28:58 mail.srvfarm.net postfix/smtpd[2589497]: NOQUEUE: reject: RCPT from unknown[69.94.135.207]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Mar  7 05:29:01 mail.srvfarm.net postfix/smtpd[2593187]: NOQUEUE: reject: RCPT from unknown[69.94.135.207]: 450 4.1.8 : S

Jun  5 16:34:11 mail.srvfarm.net postfix/smtpd[3129216]: NOQUEUE: reject: RCPT from unknown[69.94.135.194]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  5 16:34:16 mail.srvfarm.net postfix/smtpd[3129284]: NOQUEUE: reject: RCPT from unknown[69.94.135.194]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  5 16:34:17 mail.srvfarm.net postfix/smtpd[3129250]: NOQUEUE: reject: RCPT from unknown[69.94.135.194]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  5 16:40:00 mail.srvfarm.net postfix/smtpd[3129216]: NOQUEUE: reject: RCPT from unknown[69.94.135.194]: 450 4.1.8 :

Jun  5 18:39:26 mail.srvfarm.net postfix/smtpd[3176698]: NOQUEUE: reject: RCPT from unknown[69.94.135.199]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  5 18:42:05 mail.srvfarm.net postfix/smtpd[3177811]: NOQUEUE: reject: RCPT from unknown[69.94.135.199]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  5 18:42:05 mail.srvfarm.net postfix/smtpd[3177812]: NOQUEUE: reject: RCPT from unknown[69.94.135.199]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  5 18:42:05 mail.srvfarm.net postfix/smtpd[3177813]: NOQUEUE: reject: RCPT from unknown[69.94.135

Jun  2 13:46:57 mail.srvfarm.net postfix/smtpd[1211070]: NOQUEUE: reject: RCPT from unknown[69.94.135.195]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  2 13:46:58 mail.srvfarm.net postfix/smtpd[1209266]: NOQUEUE: reject: RCPT from unknown[69.94.135.195]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  2 13:47:19 mail.srvfarm.net postfix/smtpd[1203832]: NOQUEUE: reject: RCPT from unknown[69.94.135.195]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  2 13:48:06 mail.srvfarm.net postfix/smtpd[1211325]: NOQUEUE: reject: RCPT from unknown[69.94.135.195]: 450 4.1.8 

Jun  1 14:44:00 mail.srvfarm.net postfix/smtpd[596959]: NOQUEUE: reject: RCPT from unknown[69.94.135.184]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  1 14:44:08 mail.srvfarm.net postfix/smtpd[596422]: NOQUEUE: reject: RCPT from unknown[69.94.135.184]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  1 14:44:13 mail.srvfarm.net postfix/smtpd[596965]: NOQUEUE: reject: RCPT from unknown[69.94.135.184]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Jun  1 14:44:47 mail.srvfarm.net postfix/smtpd[596955]: NOQUEUE: reject: RCPT from unknown[69.94.135.184]: 450 4.1.8 : Sender address r

May 25 13:33:01 mail.srvfarm.net postfix/smtpd[234571]: NOQUEUE: reject: RCPT from unknown[69.94.135.190]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
May 25 13:33:37 mail.srvfarm.net postfix/smtpd[235744]: NOQUEUE: reject: RCPT from unknown[69.94.135.190]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
May 25 13:41:34 mail.srvfarm.net postfix/smtpd[235739]: NOQUEUE: reject: RCPT from unknown[69.94.135.190]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
May 25 13:41:50 mail.srvfarm.net postfix/smtpd[244198]: NOQUEUE: reject: RCPT from unknown[69.94.135.190]: 450 4.1.8 

May 16 22:16:33 mail.srvfarm.net postfix/smtpd[2812805]: NOQUEUE: reject: RCPT from unknown[69.94.135.194]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
May 16 22:17:19 mail.srvfarm.net postfix/smtpd[2812174]: NOQUEUE: reject: RCPT from unknown[69.94.135.194]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
May 16 22:17:19 mail.srvfarm.net postfix/smtpd[2812804]: NOQUEUE: reject: RCPT from unknown[69.94.135.194]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
May 16 22:17:19 mail.srvfarm.net postfix/smtpd[2812792]: NOQUEUE: reject: RCPT from unknown[69.94.135.194]: 450 4.

Email Spam

Apr 30 22:45:00 mail.srvfarm.net postfix/smtpd[780204]: NOQUEUE: reject: RCPT from unknown[69.94.135.184]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 30 22:48:12 mail.srvfarm.net postfix/smtpd[780202]: NOQUEUE: reject: RCPT from unknown[69.94.135.184]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 30 22:50:44 mail.srvfarm.net postfix/smtpd[780207]: NOQUEUE: reject: RCPT from unknown[69.94.135.184]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 30 22:52:27 mail.srvfarm.net postfix/smtpd[7737

Apr 23 10:22:32 mail.srvfarm.net postfix/smtpd[3842038]: NOQUEUE: reject: RCPT from unknown[69.94.135.145]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 23 10:23:38 mail.srvfarm.net postfix/smtpd[3840616]: NOQUEUE: reject: RCPT from unknown[69.94.135.145]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 23 10:24:10 mail.srvfarm.net postfix/smtpd[3831317]: NOQUEUE: reject: RCPT from unknown[69.94.135.145]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 23 10:24:46 mail.srvfarm.net postfix/smtpd[3840615]: NOQUEUE: reject: RCPT from unknown[69.94.135.145]: 450 4.1

Apr 22 05:23:34 web01.agentur-b-2.de postfix/smtpd[67232]: NOQUEUE: reject: RCPT from sundry.gratefulhope.com[69.94.135.193]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 22 05:24:27 web01.agentur-b-2.de postfix/smtpd[70916]: NOQUEUE: reject: RCPT from sundry.gratefulhope.com[69.94.135.193]: 554 5.7.1 Service unavailable; Client host [69.94.135.193] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBLCSS; from= to= proto=ESMTP helo=
Apr 22 05:24:49 web01.agentur-b-2.de postfix/smtpd[67186]: NOQUEUE: reject: RCPT from sundry.gratefulhope.com[69.94.135.193]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 22 05:30:13 web

Apr 21 05:30:35 web01.agentur-b-2.de postfix/smtpd[1805329]: NOQUEUE: reject: RCPT from unknown[69.94.135.172]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 21 05:31:16 web01.agentur-b-2.de postfix/smtpd[1804130]: NOQUEUE: reject: RCPT from unknown[69.94.135.172]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 21 05:32:50 web01.agentur-b-2.de postfix/smtpd[1805329]: NOQUEUE: reject: RCPT from unknown[69.94.135.172]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 21 05:39:31 web01.agentur-b-2.de postfix/smtpd[1805328]: NOQUEUE: reject: RCPT from unknown[69.94.135.172]: 450 4.7.1 : Helo command rejec

Apr 20 22:35:52 mail.srvfarm.net postfix/smtpd[2306699]: NOQUEUE: reject: RCPT from unknown[69.94.135.201]: 554 5.7.1 Service unavailable; Client host [69.94.135.201] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?69.94.135.201; from= to= proto=ESMTP helo=
Apr 20 22:36:24 mail.srvfarm.net postfix/smtpd[2306699]: NOQUEUE: reject: RCPT from unknown[69.94.135.201]: 554 5.7.1 Service unavailable; Client host [69.94.135.201] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?69.94.135.201; from= to= proto=ESMTP helo=
Apr 20 22:36:25 mail.srvfarm.net postfix/smtpd[2307048]: NOQUEUE: reject: RCPT from unknown[69.94.135.201]: 554 5.7.1 Service unavailable; Client host [69.94.135.201] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?69.94.135.201; from=

Apr 19 05:30:22 web01.agentur-b-2.de postfix/smtpd[70375]: NOQUEUE: reject: RCPT from cap.gratefulhope.com[69.94.135.145]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 19 05:32:48 web01.agentur-b-2.de postfix/smtpd[69236]: NOQUEUE: reject: RCPT from cap.gratefulhope.com[69.94.135.145]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 19 05:35:08 web01.agentur-b-2.de postfix/smtpd[69236]: NOQUEUE: reject: RCPT from cap.gratefulhope.com[69.94.135.145]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 19 05:36:57 web01.agentur-b-2.de postfix/smtpd[72153]: NOQUEUE: reject: RCPT from cap.gratefulhope.com[69.94.135.14

Apr 18 05:31:11 mail.srvfarm.net postfix/smtpd[3928349]: NOQUEUE: reject: RCPT from unknown[69.94.135.193]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 18 05:31:36 mail.srvfarm.net postfix/smtpd[3924176]: NOQUEUE: reject: RCPT from unknown[69.94.135.193]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 18 05:32:00 mail.srvfarm.net postfix/smtpd[3928236]: NOQUEUE: reject: RCPT from unknown[69.94.135.193]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo=
Apr 18 05:34:36 mail.srvfarm.net postfix/smtpd[3926439]: NOQUEUE: reject: RCPT from unknown[69.94.135.193]: 450 4.1.8 : Sender a

Apr 17 05:31:24 web01.agentur-b-2.de postfix/smtpd[879561]: NOQUEUE: reject: RCPT from unknown[69.94.135.172]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 17 05:31:58 web01.agentur-b-2.de postfix/smtpd[879560]: NOQUEUE: reject: RCPT from unknown[69.94.135.172]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 17 05:32:16 web01.agentur-b-2.de postfix/smtpd[879560]: NOQUEUE: reject: RCPT from unknown[69.94.135.172]: 450 4.7.1 : Helo command rejected: Host not found; from= to= proto=ESMTP helo=
Apr 17 05:33:03 web01.agentur-b-2.de postfix/smtpd[879560]: NOQUEUE: reject: RCPT from unknown[69.94.135.172]: 450 4.7.1 : Helo command rejected: Host n

firewall-block, port(s): 22/tcp

2019-09-12T14:50:10.772381abusebot-3.cloudsearch.cf sshd\[30986\]: Invalid user ubuntu from 189.112.228.153 port 52213

Port scan

Sep 12 19:14:18 hosting sshd[22260]: Invalid user test from 112.221.179.133 port 41000
...

Sep 12 19:31:25 lnxded63 sshd[1361]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=152.136.87.219
Sep 12 19:31:25 lnxded63 sshd[1361]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=152.136.87.219

Sep 12 18:41:55 vps691689 sshd[25324]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=103.52.16.35
Sep 12 18:41:57 vps691689 sshd[25324]: Failed password for invalid user 1 from 103.52.16.35 port 53368 ssh2
...

Trying to increase traffic

SMTP/25/465/587-993/995 Probe, Reject, BadAuth, Hack, SPAM -

WordPress login Brute force / Web App Attack on client site.

2019-09-12T18:01:03.944338abusebot-4.cloudsearch.cf sshd\[32170\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=218.92.0.200  user=root

Sep 12 13:38:06 aat-srv002 sshd[17578]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=46.105.110.79
Sep 12 13:38:07 aat-srv002 sshd[17578]: Failed password for invalid user 111111 from 46.105.110.79 port 43294 ssh2
Sep 12 13:43:53 aat-srv002 sshd[17682]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=46.105.110.79
Sep 12 13:43:56 aat-srv002 sshd[17682]: Failed password for invalid user accounts from 46.105.110.79 port 54214 ssh2
...

SMTP/25/465/587-993/995 Probe, Reject, BadAuth, Hack, SPAM -

Sep 12 16:12:43 tamoto postfix/smtpd[6844]: connect from ip-187-108-54-125.isp.valenet.com.br[187.108.54.125]
Sep 12 16:12:46 tamoto postfix/smtpd[6844]: warning: ip-187-108-54-125.isp.valenet.com.br[187.108.54.125]: SASL CRAM-MD5 authentication failed: authentication failure
Sep 12 16:12:47 tamoto postfix/smtpd[6844]: warning: ip-187-108-54-125.isp.valenet.com.br[187.108.54.125]: SASL PLAIN authentication failed: authentication failure
Sep 12 16:12:48 tamoto postfix/smtpd[6844]: warning: ip-187-108-54-125.isp.valenet.com.br[187.108.54.125]: SASL LOGIN authentication failed: authentication failure


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=187.108.54.125

SMTP/25/465/587-993/995 Probe, Reject, BadAuth, Hack, SPAM -

Port scan