On Wed, Oct 13, 2010 at 05:27:32PM -0300, Lucas Zinato Carraro wrote:With Thunderbird 3.1.3 i can subscribe only in folders located in Backend1where my account "lucas.carraro" exist. The other folder in backend2 are not avaiable for me:Actually, you're subscribing fine - we're just not showing them. Oops. I know exactly which change fixed this - it's an obviously over-eager patch that I applied for FastMail because users were complaining about non-existant mailboxes appearing in their list view - things that were subscribed ages ago, and appearing despite not being real.
just so I get that straight: does that affect all instances of subscriptions to non-existent mailboxes? If so that should definitely be made an option only. I agree that we have more users complain about deleted folders still showing up in the GUI of their client than there are people who actually use that as a feature, but as long as section 6.3.6 of RFC 3501 reads like the following, we just have to live with that:
A server MAY validate the mailbox argument to SUBSCRIBE to verify
that it exists. However, it MUST NOT unilaterally remove an
existing mailbox name from the subscription list even if a mailbox
by that name no longer exists.
Note: This requirement is because a server site can
choose to routinely remove a mailbox with a well-known
name (e.g., "system-alerts") after its contents expire,
with the intention of recreating it when new contents
are appropriate.
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