https://ndchost.com/wiki/ Mon, 13 Apr 2026 12:04:56 +0000 FeedCreator 1.8 https://ndchost.com/wiki/_media/wiki/logo.png https://ndchost.com/wiki/ https://ndchost.com/wiki/cpanel/exim/block-email-by-domain?rev=1458758857&do=diff How to Block E-mail by Domain in cPanel To block a domain from being able to send or receive mail, use the following steps. Log into SSH and run the following commands: touch /etc/blockeddomains echo "example.com" >> /etc/blockeddomains Log into anonymous@undisclosed.example.com (Anonymous) Wed, 23 Mar 2016 18:47:37 +0000 https://ndchost.com/wiki/cpanel/exim/error-max-defers-and-failures-per-hour?rev=1347058015&do=diff Domain domain.com has exceeded the max defers and failures per hour (5/5 (100%)) allowed Are you seeing this error in your logs? Chances are your client has triggered a fail safe in Exim that restricts them from sending any email out of your server. This event is triggered when an account sends email to addresses that fail or defer more than the set limit. So for example, an account sends out 10 emails in one hour. 5 of these messages are to addresses that fail or defer and the other 5 deliv… anonymous@undisclosed.example.com (Anonymous) Fri, 07 Sep 2012 22:46:55 +0000