private void CheckBCC(IMailItem mail)
{
// If the item already has a BCC, assume it's correct
if (!string.IsNullOrEmpty(mail.BCC))
{
return;
}
// Grab the transport headers
string headers = (string)mail.GetProperty(OutlookConstants.PR_TRANSPORT_MESSAGE_HEADERS);
if (string.IsNullOrEmpty(headers))
{
return;
}
// Check if there's a bcc header
Match match = RE_BCC.Match(headers);
if (match.Groups.Count < 2)
{
return;
}
string bcc = match.Groups[1].Value;
if (string.IsNullOrEmpty(bcc))
{
return;
}
// Add the recipient
string decoded = bcc.DecodeQuotedPrintable();
try
{
using (IRecipients recipients = mail.Recipients)
{
foreach (string entry in decoded.Split(new string[] { "\r\n", "\n" }, StringSplitOptions.None))
{
using (IRecipient recip = CreateRecipient(recipients, entry))
{
recip.Type = MailRecipientType.BCC;
}
}
}
}
finally
{
mail.Save();
}
}
private IRecipient CreateRecipient(IRecipients recipients, string decoded)
{
// First try to resolve directly
IRecipient recipient = recipients.Add(decoded);
if (recipient.Resolve())
{
return(recipient);
}
// Nope, remove and create with email
recipient.Dispose();
recipient = null;
recipients.Remove(recipients.Count - 1);
string displayName;
string email = ParseBCCHeader(decoded, out displayName);
// TODO: is it possible to use the display name?
recipient = recipients.Add(email);
recipient.Resolve();
return(recipient);
}