Robert Spier wrote:
Charlie Brady wrote:
On Wed, 4 Nov 2009, Filippo Carletti wrote:
In sme server we have some email aliases defined as visible=internal,
that is internal users (relayclients) could write to them, but from
outside the lan (non relay clients) the email address is not reachable
(non existent).
I don't think this is the correct way to implement that feature. What
this patch says is to ignore badrcptto for relay clients. What you
really want is a different set of valid local recipients for relay
clients. The set of valid local recipients is being checked by a
different plugin.
This might not be the best way to implement the feature but it is how we
implement it in SME currently.
I agree with Charlie. This isn't the right plugin for this change.
If you want this functionality, you might want a plugin wrapper.
What you need to ensure you can do is classify RCPT TO addresses into
the following categories:
- Doesn't exist (nobody should send to this address)
- Exists but only allowed for local relay (internal)
- Exists but not allowed to receive email for anywhere
- Exists and allowed to receive mail from anyone
The badrcptto plugin handles the third case but there isn't a plugin to
handle the second case. If an address is listed in badrcptto then
nobody can send to that address. The patch changes the behavior from #3
to #2 and makes it so addresses that exist can be blocked from external
receipt but internal/auth users can send to it. However it make it so
there isn't a way to implement #3.
-Shad
