Re: [Exim] Suffixes passed to LMTP transport (cyrus)?

Tom wrote:

> With LMTP, you have no choice: you must add p permission to anyone for
> all sub-mailboxes, as there is no way to change the delivery user
> identity.

There most certainly is! Cyrus and Exim both support LMTP AUTH...
using that, Exim can specify the delivery user to match the
non-suffixed portion of the local part. This allows for direct
subfolder delivery without any special ACLs. The only disadvantage of
this method is that messages to be delivered to subfolders must be
delivered one recipient at a time, which negates Cyrus' single
instance store process for those messages. All other messages can be
delivered as normal, though.