Form SPAM problem - blacklist email submission by User Agent

[MCM]

Dear @twisted1919,
we are dealing with a large amount of spam email submissions, which looks like

alExPenNIE1@GMail.com
neILW3434@GMAIl.cOm
..etc

It costs us Zerobounce credits + worse reputation.

The common feature of all of them is that their User Agent is "curl/7.54.0"
Can we blacklist these emails right away, before sending the confirmation email?

Thank you for help!

 

[twisted1919]

User agent is something that can easily be changed. Start blocking those IP addresses or the ranges their are part of.

 

[MCM]

Thank you!