We have been experiencing spam Newsletter sign-ups for the passed few weeks. The users getting signed up have a valid email address, but the rest of the data on the input form is just garbage. For example:
Subscribe page: 1 First_Name = 2 Last_Name = KXZslijM Address = aJuWQpXnKodIlAVr City = zxgYLPpJ Zip code = sugGbSXTZQeD Phone = ToQEqUwHkxOAPSRn
Is there a simple way to add validation on the data to help filter out this garbage? I’m thinking something on the Zip code field - it has a fairly easy format that could be tested.