VB.NET

Send Email with Multiple Reply-To Addresses

See more SMTP Examples

Send email with multiple repy-to addresses.

Note: Some mail servers will remove the extra email addresses from the Reply-To header. Even if you provide multiple reply-to addresses, the email may arrive with only the 1st.

VB.NET

Dim success As Boolean = False

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

Dim mailman As New Chilkat.MailMan

mailman.SmtpHost = "smtp.my_mail_server.com"
mailman.SmtpUsername = "myUsername"
mailman.SmtpPassword = "myPassword"
mailman.SmtpPort = 465
mailman.SmtpSsl = True

' Create a new email object
Dim email As New Chilkat.Email

email.Subject = "This is a test"
email.Body = "This is a test"
email.From = "Joe <joe@example.com>"
success = email.AddTo("Mary","mary@example2.com")

' Specify a single reply-to address, which will get replace with a list of addresses..
email.ReplyTo = "placeholder@example.com"

' Get the email as MIME.
Dim sbMime As New Chilkat.StringBuilder
mailman.RenderToMimeSb(email,sbMime)

' Update the Reply-To MIME header with a list of email addresses.
Dim replyToAddrs As String = "joe@example.com, mike@example.com"
sbMime.ReplaceAllBetween("Reply-To: ",vbCrLf,replyToAddrs,False)

' Examine the MIME to be sent:
Debug.WriteLine(sbMime.GetAsString())

' Here's the MIME:

' MIME-Version: 1.0
' Date: Tue, 03 Sep 2024 08:18:12 -0500
' Message-ID: <D892B0E563A7A13B1F499530DE21529714EA479A@SLICE>
' Content-Type: text/plain; charset=us-ascii; format=flowed
' Content-Transfer-Encoding: 7bit
' X-Priority: 3 (Normal)
' Subject: This is a test
' From: Joe <joe@example.com>
' To: Mary <mary@example2.com>
' Reply-To: joe@example.com, mike@example.com
' 
' This is a test

' ---------
' Send the MIME...
success = mailman.SendMime("joe@example.com","mary@example2.com",sbMime.GetAsString())
If (success = False) Then
    Debug.WriteLine(mailman.LastErrorText)
    Exit Sub
End If


success = mailman.CloseSmtpConnection()
If (success = False) Then
    Debug.WriteLine("Connection to SMTP server not closed cleanly.")
End If


Debug.WriteLine("Mail Sent!")