The following operations are supported. For a formal definition, please review the Service Description.

• KeyExpires
  Returns an expiry date for the given key. Key must match an associated email address.
• RemainingAttempts
  Returns the number of remaining attempts for today (GMT) for the key. Key must match an associated email address.
• VerifyAddress
  Verifies an address in real time. Returns a string, either "Valid", "Invalid", or "Unknown".
• VerifyAddressEx
  Verifies and address, and returns extended reply. See http://www.argosoft.com/rootpages/emailvalidationservice/ for more information
• VerifyAddressWithTimeOut
  Same as VerifyAddress, but allows to specify a timeout. In case of timeout, "Unknown" is returned