Me and a number of people I know suddenly stopped being able to either view nor download attachments that arrive in new emails we receive since this morning. Older emails work just fine and we can download/view them.

Zoho Mail states the it wasn't able to connect to the server and that it is a network error.

This occurs on mobile, desktop app and web interface across multiple devices and network connections from different internet fiber providers and mobile data carriers.

They are also multiple personal accounts, not a single organization.

Forwarding the problematic emails from Zoho to Gmail sends the attachments correctly and we can open them.

All email accounts are *@zohomail.eu