Fwd from gmail

Hi !

I used to forward all email that arrived on a gmail account to my zoho mail account.
It was working very nice until 26/05/2016, each forward failed with following message :

Delivery to the following recipient failed permanently:

xxxxx@rimbault.club

Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the server for the recipient domain rimbault.club by mx.zoho.com. [165.254.167.50].

The error that the other server returned was:
541 5.4.1 Mail rejected by destination domain

Any idea to help me ?

Regards