I am creating a SharePoint Designer 2010 workflow. Normal email action is sending emails which means SMTP setup is fine on the server.
But when I try Extended email action, it does not work. It says error occurred in the workflow field. Below is the error it shows:
System.FormatException: The specified string is not in the form required for an e-mail address. at System.Net.Mime.MailBnfHelper.ReadMailAddress(String data, Int32& offset, String& displayName) at System.Net.Mail.MailAddress.ParseValue(String addr*
Could someone please suggest what's wrong here?