Unable to send an email to multiple addresses/recipients using C#

Question

I am using the below code, and it only sends one email - I have to send the email to multiple addresses.

For getting more than one email I use:

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Answer 1

This is what worked for me. (recipients is an Array of Strings)

//Fuse all Receivers
var allRecipients = String.Join(",", recipients);

//Create new mail
var mail = new MailMessage(sender, allRecipients, subject, body);

//Create new SmtpClient
var smtpClient = new SmtpClient(hostname, port);

//Try Sending The mail
try
{
    smtpClient.Send(mail);
}
catch (Exception ex)
{
    Log.Error(String.Format("MailAppointment: Could Not Send Mail. Error = {0}",ex), this);
    return false;
}