What about doing it with a Hook for fastfail?
This hook fails the mail command if it is not authenticated. you could
also use the session.isTLSStarted() or session.isRelayingAllowed().
I'm using that hook on a second SMTP Server on port 465 to force
everyone to login.
public class AuthenticatedSMTPOnlyHandler implements MailHook {
public AuthenticatedSMTPOnlyHandler(){
}
@Override
public HookResult doMail(SMTPSession session,
MailAddress adress) {
//session.isTLSStarted()
//session.isRelayingAllowed()
if (session.getUser() == null){
return new HookResult(
HookReturnCode.DENY,
SMTPRetCode.AUTH_REQUIRED,
DSNStatus.getStatus(
DSNStatus.PERMANENT,
DSNStatus.SECURITY_AUTH+
" Authentication is required."));
}
if(session.getUser().trim().length() == 0){
return new HookResult(
HookReturnCode.DENY,
SMTPRetCode.AUTH_REQUIRED,
DSNStatus.getStatus(
DSNStatus.PERMANENT,
DSNStatus.SECURITY_AUTH+
" Authentication is required."));
}
return HookResult.ok();
}
}
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