What are you looking for in the way of support? Presumably you want to be able to subscribe UTF-8 encoded addresses with non-ascii. Do you also want to allow non-ascii list names?
I would be inclined to only support this as a site option. Should it also be contingent on the outgoing MTA offering SMTPUTF8?
I'm sure we will have to support this at some point in Mailman 3, but it may not ever be in Mailman 2.1.
What are you looking for in the way of support? Presumably you want to be able to subscribe UTF-8 encoded addresses with non-ascii. Do you also want to allow non-ascii list names?
I would be inclined to only support this as a site option. Should it also be contingent on the outgoing MTA offering SMTPUTF8?
I'm sure we will have to support this at some point in Mailman 3, but it may not ever be in Mailman 2.1.