When i try it from my different email (office365), everything woks perfect. So host IS reachable. And this didnt happen for first time. My other account hosted on zoho tells same error. So it is global problem.

Please can you fix it asap? Because zoho is losing its credibility. I dont want to use service, which i can not trust.

Thanks a lot

Zoho's message:

This message was created automatically by mail delivery system.

 

THIS IS A WARNING MESSAGE ONLY.

 

YOU DO NOT NEED TO RESEND YOUR MESSAGE.

 

The original message was received at Sat, 29 Oct 2016 18:37:34 -0700  from email@orik.org [email@orik.org]

 

    ----- The following addresses had fatal errors -----   

   [Status: Error, Address: <orionweb@seznam.cz>, ResponseCode 421, Host not reachable.]

 

Message will be retried for 4 more day(s)