Is there a way to restict mail forwarding rules to external addresses?


Great thank to Matt Buchanan for this great hint !!!

Source: http://iqjam.net/iqjam/iqjam.nsf/questions/20091021_Is_there_a_way_to_restict_mail.htm



First up, set the user forward rule return path to construct non-deliverable return addresses - if you're running 8.5, you can do this via the configuration document (the field is just below the one that disables mail rule forwarding). If you're pre-8.5, then you need to set the following parameter in the notes.ini:
RouterUserRuleForwardReversePath=3
What that does is prepends the outgoing e-mail address with 'nobounce' (so, in your example, it'd be nobouncedocternotes@acme.com).
Next, create a mail rule in your configuration document. If you have designated servers that deal with all internet e-mail, the rule should only need to be created on those servers. Set the criteria to:
When sender contains nobounce
AND any Recipient contains @
AND any Recipient contains .
That *should* limit the rule to messages sent to internet addresses via a mail forwarding rule - although you'd have to make sure your users were using the Notes address rather than the internet e-mail address in their rules. You can then set the action to 'Do Not Deliver' and either silently delete the message or send an NDR.
I'm sure there's probably a hole in my logic somewhere (and I'd like to think I've missed an easier way to do this) but I think this should sort you out.

Already tested it ( also with 8.5.3 ) and it worked fine !!!

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