Our domain mails fails to recieve messages
Mails can be sent from our end. But we can't receive any email from Gmail.
Gmail send us this message:
450 4.2.1 The user you are trying to contact is receiving mail at a rate that prevents additional messages from being delivered. Please resend your message at a later time. If the user is able to receive mail at that time, your message will be delivered. For more information, please visit
https://support.google.com/mail/?p=ReceivingRate c134si15970116ioe.171 - gsmtp