The error "Domain mydomain.com has exceeded the max defers and failures per hour (5/5 (50%)) allowed. Message discarded."

indicates that you have had a high amount of bounced mail in a small amount of time. Therefore Baehost for security reasons and in compliance with the Anti-SPAM rules, a temporary block is made for exchanges for this recipient. As soon as possible, this restriction will be eliminated, it is a temporary block.

This happens because there are many recipients that do not exist, are not available or are blacklisted.
To fix this, you must debug the recipient database


You can monitor mailings from "Monitor emails" from the "Email" section in cPanel.

In the event that you have not been the one who has been sending bulk emails, we recommend that you change the password of your account to a more secure one and that you also run an antimalware software in case there has been any intromission in your email account.
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