[Resolved] Incident in progress

Alert 10:20 AM [Paris Time]:

An incident is currently impacting our email services.

Our team is working on solving this issue as soon as possible. Please accept our apologize for the temporary service interruption.

Edit 11:20 AM [Paris Time]:

The Mail Incident is now over and resolved.

Zone files updates may be delayed.

Additional information for impacted users 12:30 PM [Paris Time]:

We confirm that this incident will not have any impact on your e-mails, which will be delivered with a slight delay.  No loss will be noticed.

A more detailed timeline is available here.