int CSmtpClient::SendEmail(CEmailMessage* msg)
{
m_scn->SetProgress(_T("Start sending email"), 0, false);
std::map<WORD, CString> host_list;
// Check whether to use proxy server or to resolve SMTP server
// address from MX record of domain.
if(!m_sServer.IsEmpty())
{
// Use proxy server
host_list[0] = m_sServer;
}
else
{
// Resolve domain name(s) from DNS record
int res = ResolveSmtpServerName(msg->GetRecipientAddress(0), host_list);
if(res!=0)
{
m_scn->SetProgress(_T("Error querying DNS record."), 100, false);
return 1;
}
}
// For each resolved domain name of SMTP server, try to send E-mail to the specified domain.
std::map<WORD, CString>::iterator it;
for(it=host_list.begin(); it!=host_list.end(); it++)
{
// Check if operation cancelled by user
if(m_scn->IsCancelled())
return 2;
// Send E-mail to current SMTP server
int res = SendEmailToRecipient(it->second, msg);
if(res==0)
{
// Succeeded
m_scn->SetProgress(_T("Finished OK."), 100, false);
return 0;
}
if(res==2)
{
// Failure
m_scn->SetProgress(_T("Critical error detected."), 100, false);
return 2;
}
}
// Failed to send E-mail
m_scn->SetProgress(_T("Error sending email."), 100, false);
return 1;
}
int CSmtpClient::_SendEmail(CEmailMessage* msg, AssyncNotification* scn)
{
scn->SetProgress(_T("Start sending email"), 0, false);
std::map<WORD, CString> host_list;
if(!m_sProxyServer.IsEmpty())
{
host_list[0] = m_sProxyServer;
}
else
{
int res = GetSmtpServerName(msg, scn, host_list);
if(res!=0)
{
scn->SetProgress(_T("Error querying DNS record."), 100, false);
return 1;
}
}
std::map<WORD, CString>::iterator it;
for(it=host_list.begin(); it!=host_list.end(); it++)
{
if(scn->IsCancelled())
return 2;
int res = SendEmailToRecipient(it->second, msg, scn);
if(res==0)
{
scn->SetProgress(_T("Finished OK."), 100, false);
return 0;
}
if(res==2)
{
scn->SetProgress(_T("Critical error detected."), 100, false);
return 2;
}
}
scn->SetProgress(_T("Error sending email."), 100, false);
return 1;
}
