Can someone please tell me how to fix this error:

Mail server outlook.office365.com is not responding.

i use the email address email address removed for privacy reasons in Outlook using office 365.

cannot send or receive emails, sent emails are staying in the Outbox.

​Can someone please tell me how to fix this error:Mail server outlook.office365.com is not responding.i use the email address email address removed for privacy reasons in Outlook using office 365.cannot send or receive emails, sent emails are staying in the Outbox.   Read More

​