Mit jelentenek az alábbi hibaüzenetek?

1.

Delivery to the following recipient failed permanently:

xyz@citromail.hu

Technical details of permanent failure:

Google tried to deliver your message, but it was rejected by the recipient domain. We recommend contacting the other email provider for further information about the cause of this error. The error that the other server returned was: 552 552 sorry, that message size exceeds my databytes limit (#5.3.4) (state 18).

2.

Delivery to the following recipient failed permanently:

xyz@gmail.com

Technical details of permanent failure:

The email account that you tried to reach does not exist. Please try double-checking the recipient's email address for typos or unnecessary spaces. Learn more at [link]