Ca subscribe of Office 365 and outlook usener, I met a small problem after I opened the Outlook Office 365. A connecting popup server P13-imap.mail.me.com.

What is and what does P13-imap.mail.me.com want from us?
p13-imap.mail.me.comit is mail server al Apple iCloud, and this message appears only to users who have installed the iCloud Manager / iCloud Drive and selected the synchronization iCloud Mail, Contacts and Task cu Microsoft Outlook.

To get rid of this popup, it is sufficient to enter the email address of the iCloud account ([email protected]) and the related password.
At the opening of Outlook 365, the iCloud account will be connected and you will be able to send and receive messages on the icloud e-mail.
If you do not want to use the iCloud account in Outlook, go to iCloud Manager and discharge the Outlook's email synchronization option.