mail constantly disconnects

Hello

For the past two weeks my Mac Mail will continually offline and when I click on the warning triangle I get the following message:

There may be a problem with the mail server or the network. Check the "iCloud" account settings or try again.

The server returned the error: connection to the server "p12 - imap.mail.me.com" on default ports has expired.

There is nothing wrong with my internet connection, I cana get mail on all my other devices and access to iCloud.

Does anyone have ideas - initially, it is once per day. Now, it happens every five minutes.

Thank you

WG

Troubleshooting post - Yosemite

Address postal (Yosemite): If you are unable to receive messages

Address postal (Yosemite): If you are unable to send messages

Post not send or receive messages after updating to OS X

Tags: Mac OS & System Software

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