I'm running the perfect server 16.04 (the one without nginx). I've installed a certificate purchased from CA. If I go to https://ssl-tools.net and test my domain name, it reports the certificate I purchased, so what I did with main.cf and 10-SSL.conf seems to have worked, but I continue to get the pop-up warning in Outlook - Internet Security Warning (not a valid security certificate) and if I click "View Certificate" it shows the Internet Widgits Pty Ltd certificate. I'm not sure where to look to fix this or if I did something wrong. The message only pops up when I'm set to IMAP for incoming and select SSL port 993