Hi, I have followed configuration tutorial for Ubuntu: howtoforge.com/tutorial/perfect-server-ubuntu-18.04-with-apache-php-myqsl-pureftpd-bind-postfix-doveot-and-ispconfig I don't know how to configure Outlook or other email client for IMAP. 1. Where should I look for ports numbers? 2. Should SSL/TTL authentication be checked for incoming and outgoing messages? 3. Should secure authentication be checked for both incoming and outgoing messages?