Nov 11 15:46:42 server1 pop3d: Connection, ip=[::ffff:200.32.69.26]
Nov 11 15:46:43 server1 pop3d: LOGIN FAILED, user=plan, ip=[::ffff:200.32.69.26]
Nov 11 15:46:48 server1 pop3d: Disconnected, ip=[::ffff:200.32.69.26]
Nov 11 15:46:48 server1 pop3d: Connection, ip=[::ffff:200.32.69.26]
Nov 11 15:46:48 server1 pop3d: LOGIN FAILED, user=redes, ip=[::ffff:200.32.69.26]
Nov 11 15:46:53 server1 pop3d: Disconnected, ip=[::ffff:200.32.69.26]
Nov 11 15:46:53 server1 pop3d: Connection, ip=[::ffff:200.32.69.26]
Nov 11 15:46:54 server1 pop3d: LOGIN FAILED, user=afranco, ip=[::ffff:200.32.69.26]
Nov 11 15:46:59 server1 pop3d: Disconnected, ip=[::ffff:200.32.69.26]
Nov 11 15:46:59 server1 pop3d: Connection, ip=[::ffff:200.32.69.26]
Nov 11 15:46:59 server1 pop3d: LOGIN FAILED, user=pgarcia, ip=[::ffff:200.32.69.26]
or
Jul 23 19:01:10 server1 postfix/smtpd[3583]: disconnect from 70-91-145-229-jax-fl.hfc.comcastbusiness.net[70.91.145.229]
Jul 23 19:01:20 server1 postfix/smtpd[3580]: warning: hostname 93-152-59-168.nws.mops2.co.uk does not resolve to address 93.152.59.168
Jul 23 19:01:20 server1 postfix/smtpd[3580]: connect from unknown[93.152.59.168]
Jul 23 19:01:21 server1 postfix/smtpd[3580]: warning: SASL authentication failure: Password verification failed
Jul 23 19:01:21 server1 postfix/smtpd[3580]: warning: unknown[93.152.59.168]: SASL PLAIN authentication failed: authentication failure
Jul 23 19:01:21 server1 postfix/smtpd[3580]: warning: unknown[93.152.59.168]: SASL LOGIN authentication failed: authentication failure
Jul 23 19:01:22 server1 postfix/smtpd[3580]: disconnect from unknown[93.152.59.168]
Jul 23 19:01:24 server1 postfix/smtpd[3583]: connect from unknown[14.162.68.221]
Jul 23 19:01:25 server1 postfix/smtpd[3583]: warning: SASL authentication failure: Password verification failed
Jul 23 19:01:25 server1 postfix/smtpd[3583]: warning: unknown[14.162.68.221]: SASL PLAIN authentication failed: authentication failure
Jul 23 19:01:26 server1 postfix/smtpd[3583]: warning: unknown[14.162.68.221]: SASL LOGIN authentication failed: authentication failure