/// <summary>
/// Ensure that domain recipients are KNOWN - i.e. registered with the Config System
/// If not, remove them.
/// </summary>
/// <param name="message"></param>
void VerifyDomainRecipientsRegistered(IncomingMessage message)
{
message.EnsureRecipientsCategorizedByDomain(this.SecurityAgent.Domains);
if (!message.HasDomainRecipients)
{
throw new AgentException(AgentError.NoRecipients);
}
DirectAddressCollection recipients = message.DomainRecipients;
if (this.Settings.MaxIncomingDomainRecipients > 0 && recipients.Count > this.Settings.MaxIncomingDomainRecipients)
{
throw new AgentException(AgentError.MaxDomainRecipients);
}
if (!m_settings.HasAddressManager)
{
// Address validation is turned off
return;
}
Address[] resolved = m_configService.GetAddresses(recipients);
if (resolved.IsNullOrEmpty())
{
throw new AgentException(AgentError.NoDomainRecipients);
}
// Remove any addresses that could not be resolved
// Yes, this is currently n^2, but given the typical # of addresses, cost should be insignificant
int i = 0;
while (i < recipients.Count)
{
DirectAddress recipient = recipients[i];
int iAddress = Array.FindIndex <Address>(resolved, x => x.Match(recipient));
if (iAddress >= 0)
{
++i; // Found
recipient.Tag = resolved[iAddress];
}
else
{
recipients.RemoveAt(i);
}
}
}
void Route(ISmtpMessage message, DirectAddressCollection recipients, DirectAddressCollection routedRecipients)
{
Dictionary <string, Route> matchedRoutes = new Dictionary <string, Route>(StringComparer.OrdinalIgnoreCase);
int i = 0;
//
// First, find all routes that match
// We'll remove recipients that were routed from the recipients list so
// SMTP server does not itself try to deliver to them
//
while (i < recipients.Count)
{
DirectAddress recipient = recipients[i];
Address address = recipient.Tag as Address;
if (address != null)
{
Route route = this[address.Type];
if (route != null)
{
matchedRoutes[address.Type] = route;
recipients.RemoveAt(i);
if (routedRecipients != null)
{
recipient.Tag = route.AddressType; // Reference for failed delivery
routedRecipients.Add(recipient); // Add the routed recipient to the list
}
continue;
}
}
++i;
}
if (matchedRoutes.Count == 0)
{
return;
}
this.Route(message, matchedRoutes.Values);
}
