adding extra email address
I would like to add an extra email address for online ordering to stop my main address from being deluged wtith junk.
I have Outlook 365 & use Itunes to sync my Iphone calendar with with my Outlook calendar.
I have understood that i need to use pop3 to sync my Outlook calendar with Itunes/Apple devices.
I have tried numerous times to set up this extra email address via Outlook and from the Xfinity site trying pop3 and imap and every conceivable combination of settings and i am rejected every time.
When i try it from within Outlook it just says "something went wrong" and offers useless "help."
The last time i tried it from the Xfintity site I got a message that I had "invalid credentials."
Please advise how i can set up this additional email address to be used with Outlook and my Iphone. Thanks.