#18 SMTP Banner & Setting Up Forwarding

[Jon Harris]

We are using EmailRelay as a secondary MX server for our Exchange Server.

I have a couple of issues:
1. Can I change the banner from <hostname>.local to a real FQDN?
2. We have set it up to forward emals to the exchange server and this appears to be working (we have only just done it, so can't be certain)</hostname>

It "appears" to accept any domain, so looks like its open-relay. Presumably, as the exchange server itself won't forward these emails, it isn't open relay?

Ideally I would like to create an "accepted domains" list, so it doesn't even appear to relay for anything other than our own domain, is this possible?

1. Is it fairly straightforward to setup TLS? Will it work if the certificate is installed by the Windows certificate console?

Many thanks

[Graeme Walker]

1. Yes, add "--domain=example.com" to the command-line (so on windows add it into the startup batch file).
2. You need to write an address verifier script, with "--verifier=..." added to the command-line. Refer to the "address verification" section of the reference document.
3. TLS requires a PEM-format file containing the X.509 certificate chain and private key, with "--server-tls=..." on the command-line. The implementation uses the OpenSSL library. I'm not familiar with the windows certificate console.