Hi all,

I finally got my server setup and working well when accessed from the local network. Before putting it live on the Internet as it will be the MX for one of my domains, I would like to confirm a few things:

1. AFAIK, it won't be an open relay for anyone but only for authenticated STMP users. This behaviour is the default one and nothing needs to be configured. 2. I can use something like SpamHaus to filter by IPs, I've seen the option in the webadmin interface so I should be able to turn that on if needed 3. I've heard about greylisting where the default answer is to say "come back later". Initial testing suggests that courier is handling that well when connecting to a remote server. However, can it be configured to behave like this when receiving SMTP connections? 4. I've seen servers that refuse mails from mine saying that the domain is not routeable. I've looked around and it seems that's because they try to contact the MX server for my domain as a way to verify the originating server and address exist. As my server is not "live" on the Internet, that does not work yet. Can this kind of behaviour be configured in Courier? And is it desirable?

Thanks again for the help. Cheers Olivier