I have just setup Outlook to connect to an IMAP and SMTP mail server.
The IMAP server requires SSL and the SMTP server requires TLS.
There does not appear to be any requirerement to logon using secure password authentication (SPA)
Hence my question: Is SPA redundant when mail server uses encrypted connection?
A bit of background on SPA would be useful too, since I don't really understand what it is and why it is there.