.NET Core C#

MailMan GetSentToEmailAddrs

Demonstrates how to get the email addresses accepted by the SMTP server during an SMTP send. .NET Core C#

bool success = false;

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// Demonstrates how to get the successful recipients for the last email sent.

// Note: Success does not ensure actual delivery, nor does it mean the email address is actually valid.
// It may be that the email address is invalid and will get bounced at the destination.

// Also: An SMTP client (such as Chilkat, Mozilla Thunderbird, etc.) is only responsible for "handing off" the email to the SMTP server 
// for delivery (either to a local mailbox, or to a remote mailbox where the SMTP server acts as a relay). 
// The SMTP client's task is ended when the SMTP protocol exchange is completed, and the SMTP server says "OK, I've got it and I'll take it from here.". 
// If the email never actually gets delivered, then there is a problem downstream of the Chilkat-->SMTP server handoff.

Chilkat.MailMan mailman = new Chilkat.MailMan();

mailman.SmtpHost = "outlook.office365.com";
mailman.SmtpPort = 587;
mailman.StartTLS = true;

// Set the SMTP login/password
mailman.SmtpUsername = "OFFICE365-SMTP-LOGIN";
mailman.SmtpPassword = "OFFICE365-SMTP-PASSWORD";

// Create a new email object
Chilkat.Email email = new Chilkat.Email();

email.Subject = "Testing for Chilkat API...";
email.Body = "Testing for Chilkat API...";
email.From = "Chilkat Support <my-office365-user@mydomain.com>";
success = email.AddTo("Chilkat Admin","admin@chilkatsoft.com");
success = email.AddTo("Chilkat Support","support@chilkatsoft.com");
// To add more recipients, call AddTo, AddCC, or AddBcc once per recipient.

// Allow SendEmail to succeed even if some recipients are rejected immediately
// by the SMTP server.
mailman.AllOrNone = false;

// Call SendEmail to connect to the SMTP server and send.
// The connection (i.e. session) to the SMTP server remains
// open so that subsequent SendEmail calls may use the
// same connection.  
success = mailman.SendEmail(email);
if (success != true) {
    Debug.WriteLine(mailman.LastErrorText);
    return;
}

success = mailman.CloseSmtpConnection();
if (success != true) {
    Debug.WriteLine("Connection to SMTP server not closed cleanly.");
}

Debug.WriteLine("Mail Sent!");

// Examine which email addresses were accepted by the SMTP server during the SMTP conversation. 
// (i.e. during the SendEmail)
Chilkat.StringArray acceptedAddrs = mailman.GetSentToEmailAddrs();
int numAddrs = acceptedAddrs.Count;
int i = 0;
while (i < numAddrs) {
    Debug.WriteLine("Accepted recipient " + Convert.ToString(i) + ": " + acceptedAddrs.GetString(i));
    i = i + 1;
}