289517Re: what is a virtual domain?
- Nov 19, 2012On Mon, 19 Nov 2012 08:40:52 -0600, Lindsay Haisley wrote:
> I'm not sure what's meant by the term "vanityThe terminology's from postfix:
> domain" but I'm sure it'll do just fine, as long as it resolves to a
> proper local IP address and if necessary there's a MX (mail exchange)
> record associated with it.
Postfix on hosts without a real Internet hostname
This section is for hosts that don't have their own Internet hostname.
Typically these are systems that get a dynamic IP address via DHCP or
via dialup. Postfix will let you send and receive mail just fine between
accounts on a machine with a fantasy name. However, you cannot use a
fantasy hostname in your email address when sending mail into the
Internet, because no-one would be able to reply to your mail. In fact,
more and more sites refuse mail addresses with non-existent domain names.
The shifting nomenclature just adds to the confusion. And it's not a
non-existent domain name, bounceme.net is valid and owned by no-ip.com.
Only the prefix is "mine" in any sense.
In reply to what's said above by Lindsay about resolving to a proper IP
address, no it doesn't resolve, with some caveats.
Or, to add to the confusion, sometimes entering http://dur.bounceme.net/
will resolve to my dynamic IP address which my ISP provides, but there's
no guarantee it will work and I wouldn't want it to -- I'm not trying to
run a server on the internet. Which IP address that "host" resolves to
is up to no-ip.com, who own bounceme.net and only let me use
dur.bounceme.net as a courtesy/marketing thing.
On my machine, yes, the host name (?) of dur.bounceme.net seems to work
fine. Mailman comes up fine, and postfix seems to manage to keep all
the mail local.
Many of the replies are over my head with SSL authentication, but I
appreciate the information in any event.