Contact.GetIsSubscribed
Returns True or False as to the existence of the given email address. Go here for the WSDL.
Input Parameters
Here's a list of all the parameters you'll need to pass to the Contact.GetIsSubscribed method. All of the parameters are required.
ApiKey: string
Your API access key. Go here for more details.
Email: string
The email address of the contact you're interested in.
Return Codes
Upon a successful call, this method will return a boolean. Upon an error, this method will return a Result complex type.
0: System Failure
The request failed due to a system failure.
100: Invalid API Key
The API key passed was not valid or has expired.
202: Email doesn't exist
The Email address doesn't exist in the system.