Hello Postfix-users, Just curious. I got these continuous attempt to connect to email server by my spam appliance. Any advice ?
Thank you and best regards. Snowie Apr 24 10:19:15 email postfix/smtpd[2232]: connect from firewall.abc.com[192.168.0.1] Apr 24 10:19:16 email postfix/smtpd[2159]: connect from firewall.abc.com[192.168.0.1] Apr 24 10:19:18 email postfix/smtpd[2141]: warning: firewall.abc.com[192.168.0.1]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Apr 24 10:19:18 email postfix/smtpd[2232]: warning: firewall.abc.com[192.168.0.1]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Apr 24 10:19:18 email postfix/smtpd[2141]: lost connection after AUTH from firewall.abc.com[192.168.0.1] Apr 24 10:19:18 email postfix/smtpd[2141]: disconnect from firewall.abc.com[192.168.0.1] Apr 24 10:19:18 email postfix/smtpd[2232]: lost connection after AUTH from firewall.abc.com[192.168.0.1] Apr 24 10:19:18 email postfix/smtpd[2232]: disconnect from firewall.abc.com[192.168.0.1] Apr 24 10:19:19 email postfix/smtpd[2141]: connect from firewall.abc.com[192.168.0.1] Apr 24 10:19:20 email postfix/smtpd[2232]: connect from firewall.abc.com[192.168.0.1] Apr 24 10:19:21 email postfix/smtpd[2141]: warning: firewall.abc.com[192.168.0.1]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Apr 24 10:19:21 email postfix/smtpd[2141]: lost connection after AUTH from firewall.abc.com[192.168.0.1] Apr 24 10:19:21 email postfix/smtpd[2141]: disconnect from firewall.abc.com[192.168.0.1] Apr 24 10:19:22 email postfix/smtpd[2159]: 48BF93523D8: client=firewall.abc.com[192.168.0.1] Apr 24 10:19:22 email postfix/smtpd[2232]: warning: firewall.abc.com[192.168.0.1]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Apr 24 10:19:22 email postfix/smtpd[2232]: lost connection after AUTH from firewall.abc.com[192.168.0.1]