Block spam senders with the Client Firewall Last updated: Aug 16, 2026

The Client Firewall lets you block people from becoming clients or opening tickets, by email address or domain.

Navigate to Settings > Client Firewall.

Click Block to add a rule. A rule can match an email or a domain, either exactly (equals) or partially (contains). For example, you can block a specific address, an entire domain, or any address containing a keyword.

Existing rules are listed with their type, match style, and the date they were added. You can also Import or Export rules in bulk.

Blocked senders, domains, or keywords are prevented from raising tickets — useful for keeping spam out of your Email to Ticket inbox.