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 prueba@midom.com 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.