Block lists
When you add blocked senders, Area 1 automatically marks all messages from these senders with a MALICIOUS disposition.
Add a blocked sender
To create a new blocked pattern:
Log in to the Area 1 dashboard.
Go to Settings (the gear icon).
On Email Configuration, go to Block List > Blocked Senders.
Select + New Sender.
Enter the pattern information:
Sender: Enter one of the following types of pattern:
- Email addresses: Must be a valid email.
- IP addresses: Can only be IPv4. IPv6 and CIDR are invalid entries.
- Regular expressions: Must be valid Java expressions. Regular expressions are matched with fields related to the sender email address (
envelope from,header from,reply-to), the originating IP address, and the server name for the email.
Notes: Provide additional notes about the blocked sender pattern.
Select Save.
CSV uploads
You can also upload a CSV file of multiple allowed patterns. The CSV file must be smaller than 150 KB, start with a header row of all required values, and contain no additional fields.
An example file would look like this:
Blocked_Sender, Notes[email protected], John Smith[email protected], Melanie Turner