Manage Sender IPs (WebUI Method)
- Go to cPFence WebUI ➜ Tools & Utilities ➜ Spam AutoShield Tools.
- Open Block / Unblock IP.
- Enter the IPv4/IPv6 address.
- Click Block IP to add it to the Spam AutoShield blocklist, or Unblock IP to remove it.
- Changes apply immediately to all mail services on the server.
Use this for problematic senders that bypass content filters; unblock once the abuse stops.
Command Line (CLI) Method
- SSH into the server.
- Block an IP:
cpfence --add-spam-autoshield-ip 1.2.3.4 - Unblock it:
cpfence --del-spam-autoshield-ip 1.2.3.4
Combine this with ASN or domain blocks for sustained campaigns.
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