Filter on "Envelope To"

[mfvm]

If a user has several aliases and wants to sort the messages according to the aliases, filtering the 'To' and 'Cc' headers is not sufficient. Bug #15395 suggests to add X-Original-To Header for better filtering.
Another possible way would be to support the sieve envelope test as described in RFC 5228, which seems not to be the case in zimbra 5.x. Are there plans to support envelope tests in zimbra?

[ewilen]

I don't know if there are plans but I've added your idea to the comments in bug #15395.