Can't send/receive emails from Apple Mail.
My Comcast email no longer works in Apple Mail on my iMac. How do I change the email settings to the IMAP account type instead of POP? I have OS X El Capitan 10.11.3 on my iMac. Spoke to a Comcast Tech this morning who said I must contact Apple to change the settings.
iMac (21.5-inch Mid 2011), Other OS, OS X El Capitan 10.11.3