Jetpack contact form and Akismet.
Problem: There is one item of spam coming through again and again. It has the same name and email each time, but different IPs. I've marked these as spam more than 20 times, but there continues to be a lot of them.
Question: How can I block this individual email address? or will the system eventually learn? (It's on a client site so flooding their inbox)
Thanks in advance.