#2 Reply-To address

[Anonymous]

Add reply-to address.
This can be done as follows:

In EmailMessage.cs:
Add

    private EmailAddressCollection \_replytoaddresses=new EmailAddressCollection\(\);

    \#region ReplyToAddresses
    /// <summary>
    /// Retrieve the collection of recipients
    /// that will appear in the "Reply-To" header of the
    /// email.
    /// </summary>
    public EmailAddressCollection ReplyToAddresses 
    \{
        get \{return \_replytoaddresses;\}
    \}
    \#endregion

    \#region AddReplyToAddress
    /// <summary>
    /// Add a Reply-To address to the Headers. 
    /// </summary>
    /// <param name="emailaddress">Email Address object of the recipient</param>
    public void AddReplyToAddress\(EmailAddress emailaddress\) 
    \{
        \_replytoaddresses.Add\(emailaddress\);
    \}
    /// <summary>
    /// Add a Reply-To address to the Headers. 
    /// </summary>
    /// <param name="email">The plain email address \(don't include the name\)</param>
    public void AddReplyToAddress\(String email\) 
    \{
        \_replytoaddresses.Add\(new EmailAddress\(email\)\);
    \}
    \#endregion

AND THEN IN
GetStandardHeaders
replace
message.Subject=_subject;
message.FromAddress=_fromaddress;
with
message.Subject=_subject;
message.FromAddress=_fromaddress;
message.AddReplyToAddress("geert.verbakel@gmail.com");

[Nobody/Anonymous]

Logged In: NO

Little mistake in GetStandardHeaders.
It must be replace
standardheaders.Add(new MessageHeader("From", _fromaddress.ToDataString()));
standardheaders.Add(new MessageHeader("To", _toaddresses.ToDataString()));
with
standardheaders.Add(new MessageHeader("From", _fromaddress.ToDataString()));
standardheaders.Add(new MessageHeader("To", _toaddresses.ToDataString()));
standardheaders.Add(new MessageHeader("Reply-To", _replytoaddresses.ToDataString()));