559 Message not committed due to internal error

559 Message not committed due to internal error

Hi,
We've got some problem with mail:
>>Google tried to deliver your message, but it was rejected by the relay  smtp.zoho.com  by  smtp.zoho.com . [74.201.154.90].

>>The error that the other server returned was:
>>559 Message not committed due to internal error

Please, fix it ASAP.

ps.
 yes, I know your preferred answer:
>>Due to temporary connectivity failure, the reported issue occurred. Our engineering team had identified the cause and >>fixed the issue within minutes.

Regards,
  Eugene.