Q: Does the Mac support POP and IMAP?
A: Yes, but more important questions (and answers) are:
1) Does my email provider support POP/and or IMAP (or any other protocol) access?
2) Does my email client support POP/and or IMAP?
Not all email providers provide IMAP access, where practically every one supports POP, so if you want IMAP you will need to do a little more work to find an IMAP provider vs a POP provider.
And once you’ve established that an email provider DOES support your preferred protocol, then you must find an email client that can support it. Personally, I use Thunderbird for almost all IMAP acesss to my accounts. But if I were using an exchange server, I’d probably use Outlook.
Hope that helps.