protected bool IsOutgoingEmail(IPersistentEmail email)
{
return IsInternalSender(email) && HasExternalRecipients(email);
}
protected bool IsIncomingEmail(IPersistentEmail email)
{
return !IsInternalSender(email);
}
protected bool IsInternalSender(IPersistentEmail email)
{
return IsInternalEmailAddress(email.Sender);
}
protected bool HasExternalRecipients(IPersistentEmail email)
{
return email.Recipients.Any(recipient => !IsInternalEmailAddress(recipient));
}
