Hi All, I've setup a new server but I get this warning… An idea how to prevent this ? Thanks ! Code: Mar 31 17:09:23 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<snvPb+j1OQCX7bGI> Mar 31 17:09:24 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<tFzYb+j1cgCX7bGI> Mar 31 17:09:25 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<0eXfb+j1qQCX7bGI> Mar 31 17:09:25 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<b1vub+j1CwCX7bGI> Mar 31 17:09:26 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<Rqz1b+j1TgCX7bGI> Mar 31 17:09:26 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<4H79b+j1fgCX7bGI> Mar 31 17:09:27 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<c8AGcOj1tACX7bGI> Mar 31 17:09:27 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<2SwNcOj18gCX7bGI> Mar 31 17:09:28 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<4joYcOj1RQCX7bGI> Mar 31 17:09:29 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<ivofcOj1jACX7bGI> Mar 31 17:09:29 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<gWwmcOj1xQCX7bGI> Mar 31 17:09:30 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<mcExcOj1FwCX7bGI> Mar 31 17:09:30 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<OUw4cOj1UACX7bGI> Mar 31 17:09:31 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<fAw/cOj1hwCX7bGI> Mar 31 17:09:31 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<Aq9GcOj10wCX7bGI> Mar 31 17:09:32 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<txhNcOj1LQCX7bGI> Mar 31 17:09:32 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<e/ZTcOj1cwCX7bGI> Mar 31 17:09:33 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<rzxdcOj1tQCX7bGI> Mar 31 17:09:33 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<C7tkcOj1DwCX7bGI> Mar 31 17:09:34 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<L/BrcOj1CQCX7bGI> Mar 31 17:09:34 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<iMJycOj1RQCX7bGI> Mar 31 17:09:35 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<DEd5cOj1iACX7bGI> Mar 31 17:09:55 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<7w23cej1BgCX7bGI> Mar 31 17:09:56 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<mGa+cej1LACX7bGI> Mar 31 17:09:56 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<vUnHcej1bwCX7bGI> Mar 31 17:09:57 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<fCTOcej1kwCX7bGI> Mar 31 17:09:57 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<0oXUcej1vwCX7bGI> Mar 31 17:09:58 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<buDacej16wCX7bGI> Mar 31 17:09:58 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<6+7hcej1GACX7bGI> Mar 31 17:09:59 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<U3bocej1SgCX7bGI> Mar 31 17:09:59 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<3fLucej1gwCX7bGI> Mar 31 17:09:59 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<E1P1cej1wACX7bGI> Mar 31 17:10:00 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<Wq77cej1/gCX7bGI> Mar 31 17:10:00 server2 dovecot: pop3-login: Aborted login (tried to use disallowed plaintext auth): user=<>, rip=151.237.177.136, lip=IP_SERVER, session=<P2gEcuj1QACX7bGI>
Check Your dovecot configuration. Which version of dovecot You have? In Your configuration check this directives: Code: disable_plaintext_auth = no auth_mechanisms = plain login
Hi, Thanks for your answer… The version of dovecot is : 2.1.7 Here is what I've in Dovecot.conf : Code: listen = *,[::] protocols = imap pop3 auth_mechanisms = plain login disable_plaintext_auth = no log_timestamp = "%Y-%m-%d %H:%M:%S " mail_privileged_group = vmail ssl = required