A NameValue collection of XHeaders.
[C#]
EmailMessage msg = new EmailMessage( "mail.myCompany.com");
msg.Subject = "Order Confirmation";
msg.To = "you@yourcompany.com";
msg.From = "me@myCompany.com";
//logging for easier troubleshooting
msg.Logging = true;
msg.LogPath = "c:\\email.log";
//set the plain text body
msg.Body = "the email body contents go here...";
//set the X-Mailer
msg.XMailer = "Acme Mailer 1.0";
//add X-Headers
msg.XHeaders = new NameValueCollection();
msg.XHeaders.Add( "X-Company", "Acme Corp" );
msg.XHeaders.Add( "X-Campaign", "1990XYKSX92" );
msg.Send();
[VB.NET]
Dim msg As New EmailMessage("mail.myCompany.com")
msg.Subject = "Order Confirmation"
msg.To = "you@yourcompany.com"
msg.From = "me@myCompany.com"
'logging for easier troubleshooting
msg.Logging = True
msg.LogPath = "c:\email.log"
'set the plain text body
msg.Body = "the email body contents go here..."
'set the X-Mailer
msg.XMailer = "Acme Mailer 1.0"
'add X-Headers
msg.XHeaders = New NameValueCollection()
msg.XHeaders.Add("X-Company", "Acme Corp")
msg.XHeaders.Add("X-Campaign", "1990XYKSX92")
msg.Send()