I keep getting spam emails from terra.com with different names such as
Every time I block the sender they keep coming back with different names in front of terra.com.
How can I block them?
One suggestion would be to create a block rule for the domain. For example, when adding a block sender rule, instead of listing individual addresses as email@example.com firstname.lastname@example.org, try instead adding the rule to @terra.com which may block all senders from that domain.
You could also create a message filter to filter all emails from that domain to be sent to spam or purged immediately.
The settings available will greatly depend on what email platform you are using.
Hope this helps!