DigitalOcean email server with outlook error

Posted May 12, 2014 2.5k views
Hi, I have a virtualserver (digital ocean) with ubuntu I am installing a mail server and I have a little problem - I installed and configured postfix - I installed Dovecot - Dovecot.conf "protocols = imap pop3" - I send emails using the console ‬ ‪ # sendmail - I receive emails sent from a gmail - Create an account THE problem: When I go from Outlook to manage emails, I get an error "Log on to incoming mail server (POP3)" and "Sign in to the incoming POP3 mail server: the mailbox is temporarily unavailable because it is sending another message to this email or this obtiendo other applications access the same mail." Thank you.

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2 answers
Can you please post your /etc/dovecot/conf.d/10-auth.conf file?
Also which tutorial did you followed if any?