Patch: add new lmtptarget annotation

Nic Bernstein nic at onlight.com
Tue May 18 15:11:16 EDT 2010


This looks like a great addition.  One question: Where in the 
documentation should information be added describing this new 
annotation?  Where are available annotations documented currently?

Thanks for the contribution!
     -nic

On 05/18/2010 12:47 PM, Wesley Craig wrote:
> Seems like a reasonable approach and a good patch.  I might suggest
> some feedback, preferably to the deleting / renaming user but a
> syslog might also do, when the delete / rename failed.
>
> Is there a bugzilla number?
>
> :wes
>
> On 18 May 2010, at 12:38, Stephen Grier wrote:
>
>> Just submitting a patch I'm supporting locally for consideration.
>>
>> We use shared mailboxes quite extensively for role-based
>> communication.
>> For quite some time we've had a problem with users deleting or
>> renaming
>> mailboxes into which we deliver mail. We can, and do, use IMAP ACLs to
>> dissallow users from deleting the delivery target mailbox. But when a
>> user creates a child mailbox it inherits the ACLs of the parent,
>> and the
>> user is then not able to delete or rename the sub folder.
>>
>> As a fix, I have written a patch against 2.3.16 to add a new
>> lmtptarget
>> mailbox annotation. When enabled, Cyrus won't allow the mailbox to be
>> deleted or renamed. We can then set whatever ACLs we want inherited by
>> child mailboxes, happy in the knowledge the user won't blat the
>> mailbox
>> and cause mail to bounce.
>>
>> The rationale here is that Cyrus treats user.foo with special
>> significance as a delivery target, but does not do the same for shared
>> mailboxes because there is no way for Cyrus to know which shared
>> mailboxes we intend to deliver mail into. Using a mailbox annotation
>> seems a nice way of flagging this.
>>
>> Patch attached. Comments welcome.
>>
> ----
> Cyrus Home Page: http://cyrusimap.web.cmu.edu/
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>

-- 
Nic Bernstein                             nic at onlight.com
Onlight llc.                              www.onlight.com
219 N. Milwaukee St., Suite 2a		  v. 414.272.4477
Milwaukee, Wisconsin  53202


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