cPanel Max Defers Occurring for an Account

While viewing exim_mainlog and seeing the following:

 

enforce_mail_permissions: Domain thedomain.com has exceeded the max defers and failures per hour (5/5 (100%)) allowed. Message discarded.

 

This occurs when an account is sending email to too many invalid recipient emails. This may be the result of:

 

  • - bulk email sending
  • - a script using that email address has been compromised
  • - the email account itself is compromised

In such a case we recommend validating your recipient list, ensuring any PHP or java scripts you are using are up to date and secure, and/or changing the password of your email account and making sure you are using SSL/TLS for your email connections.

 


If you have a VPS or dedicated server, if necessary, you may increase the allowed defer emails via your web host manager tweak settings.

 

To reset an accounts defer block, remove the file at /var/cpanel/email_send_limits/max_deferfail_thedomain.com 


  • 130 Users Found This Useful

Was this answer helpful?

Related Articles

connection failed for acme-v01-api-letsencrypt org: SSL connect attempt failed

 (Hypertext Transfer Protocol) “post” request to...

FTP Failed: Service check failed to complete Unable to connect to port 21

The service “ftpd” appears to be down. The system failed to connect to this service’s TCP/IP...

Repairing and Optimizing all MySQL and MariaDB Databases on the Server

From time to time you will find repairing and optimizing your databases are necessary. From a...

Manually Clear from Console / Command Line cPanel Exim Mail Queue

To clear the cPanel exim mail queue quickly from a command line / shell use the following...

CSF Error: *WARNING* Binary location for [HOST] [/usr/bin/host] in /etc/csf/csf-conf is either incorrect, is not installed or is not executable

During a CSF start or restart you may encounter this error. This is a result of /usr/bin/host...