Outlook problem

When trying to connect to my emails from outlook gives me connection error STMP, reviewing the / var / log / maillog there the following errors:

Quote:

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Nov 28 01:18:23 server dovecot[704]: auth-worker(16293): shadow(ventas@mmwebz.com,190.215.206.44): unknown user

Nov 28 01:18:23 server dovecot[704]: auth-worker(16293): shadow(ventas@mmwebz.com,190.215.206.44): unknown user

Nov 28 01:18:23 server dovecot[704]: pop3-login: Login: user=<ventas@mmwebz.com>, method=PLAIN, rip=190.215.206.44, lip=74.117.159.17, mpid=16305, session=<amg6jeMIlQC+184s>

Nov 28 01:18:24 server dovecot[704]: pop3(ventas@mmwebz.com): Disconnected: Logged out top=0/0, retr=0/0, del=0/2325, size=791430761, bytes=12/54

Nov 28 01:19:00 server dovecot[704]: auth-worker(16293): shadow(ventas@mmwebz.com,127.0.0.1): unknown user

Nov 28 01:19:00 server dovecot[704]: auth-worker(16293): shadow(ventas@mmwebz.com,127.0.0.1): unknown user

Nov 28 01:19:00 server dovecot[704]: imap-login: Login: user=<ventas@mmwebz.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=16316, secured, session=<52Foj+MI8AB/AAAB>

Nov 28 01:19:00 server dovecot[704]: imap(ventas@mmwebz.com): Disconnected: Logged out in=258 out=2965

Nov 28 01:19:01 server dovecot[704]: auth-worker(16293): shadow(ventas@mmwebz.com,127.0.0.1): unknown user

Nov 28 01:19:01 server dovecot[704]: auth-worker(16293): shadow(ventas@mmwebz.com,127.0.0.1): unknown user

Nov 28 01:19:01 server dovecot[704]: imap-login: Login: user=<ventas@mmwebz.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=16320, secured, session=<F4N5j+MI+QB/AAAB>

Nov 28 01:19:01 server dovecot[704]: imap(ventas@mmwebz.com): Disconnected: Logged out in=44 out=580

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Outlook problem