What does this error mean?
If you receive an error message like "Domain" has exceeded the max defers and failures per hour (5/5 (100%)) allowed" in an email bounce-back, it indicates that your domain has triggered a server rule preventing further outgoing emails. This occurs when your domain attempts to send emails to invalid or non-existent addresses, surpassing the server's limit on email failures.
Why is there a limit on deferred emails?
The default limit is generally enough for most users and is a common practice in the web hosting industry. This limit helps prevent malware or automated email scripts from being used by spammers to send out unwanted emails through your account.
How can I fix this?
Stop sending emails for one hour. The block will be automatically lifted afterward.
How can I prevent this from happening?
- Limit the number of emails you send.
- Verify email addresses before sending to ensure they are valid.
What are my options if I need to send more emails?
If you need to send a higher volume of emails, consider upgrading your hosting plan or contacting your hosting provider to discuss available options.
