//
// A CDO Message could be arriving via the SMTP server, or could have been constructed manually
// The one created by SMTP has envelope information
// Returns false if no envelope info is available. We have to look within message headers in that case
//
bool ExtractEnvelopeFields(CDO.Message message, ref DirectAddressCollection recipientAddresses, ref DirectAddress senderAddress)
{
if (!this.HasEnvelope)
{
//
// No envelope
//
return false;
}
recipientAddresses = null;
senderAddress = null;
string sender = message.GetEnvelopeSender();
if (string.IsNullOrEmpty(sender))
{
throw new SmtpAgentException(SmtpAgentError.NoSenderInEnvelope);
}
//
// In SMTP Server, the MAIL TO (sender) in the envelope can be empty if the message is from the server postmaster
// The actual postmaster address is found in the message itself
//
if (Health.Direct.SmtpAgent.Extensions.IsSenderLocalPostmaster(sender))
{
return false;
}
string recipients = message.GetEnvelopeRecipients();
if (string.IsNullOrEmpty(recipients))
{
throw new SmtpAgentException(SmtpAgentError.NoRecipientsInEnvelope);
}
recipientAddresses = DirectAddressCollection.ParseSmtpServerEnvelope(recipients);
senderAddress = new DirectAddress(sender);
return true;
}
