Re: It's not possible to create folder which name starts with hash-sign (#)

I did linked it in the email - I'm aware of the specification but as with RFCs - it's not even 
"SHOULD" (or SHOULD NOT), not to mention explicit MUST, and considering that all other 
implementations (that I tested) ignore it then I'm not sure it's valid.

Wojtek

On 22/06/2023 01:33, Benoit TELLIER wrote:
> By the way https://www.rfc-editor.org/rfc/rfc3501#section-5.1
> 
>     5)    Two characters, "#" and "&", have meanings by convention, and
>           should be avoided except when used in that convention.--
> 
> 
> Best regards,
> 
> 
> 
> Benoit TELLIER
> 
> 
> 
> General manager of Linagora VIETNAM.
> 
> Product owner for Team-Mail product.
> 
> Chairman of the Apache James project.
> 
> 
> 
> Mail: [email protected]
> 
> Tel: (0033) 6 77 26 04 58 (WhatsApp, Signal)
> 
> On Jun 22, 2023 12:32 PM, from Benoit Tellier Hello Wojtek,
> 
> That is because James employs a folder hierarchy where '#' is used to denote a namespace.
> 
> #private:wojtek:INBOX denotes your inbox on which I would have a shared access.
> #shared:marketting:INBOX denotes a shared mailbox for the marketting team.
> 
> I bet you could do: #private:wojtek:#hashtest ?
> 
> That being said, james have no support for accessing shared mailboxes in IMAP just quite yet. The usefulness of that addressing scheme is thus limited.
> 
> IMO we could:
>   - Drop the #namespace:user:mailbox addressing sheme in IMAP as it is not currently in use...
>   - Or (lighter) if we can't parse a mailbox path (no : after #) then keep the name as is, IE support #hashtest
>   - Review and adopt another addressing sheme that matches those of eg cyrus.
> 
> --
> 
> 
> Best regards,
> 
> 
> 
> Benoit TELLIER
> 
> 
> 
> General manager of Linagora VIETNAM.
> 
> Product owner for Team-Mail product.
> 
> Chairman of the Apache James project.
> 
> 
> 
> Mail: [email protected]
> 
> Tel: (0033) 6 77 26 04 58 (WhatsApp, Signal)
> 
> On Jun 22, 2023 9:10 AM, from Wojtek Hi,
> I ran into an issue when importing mails from other servers - it seems that it's not possible to
> create folder which name starts with hash-sign, e.g.: "#testfolder".
> 
> I tested other mail servers (gmail, mailu [postfix?], fastmail [cyrrus?], mailbox.org, infomaniak
> [no idea what they use]) and all of them allowed folder names starting with "#".
> 
> 
> ```
> A4 CREATE #hashtest
> A4 NO CREATE You can not access a mailbox that does not belong to you
> ```
> 
> Looking at the spec (https://datatracker.ietf.org/doc/html/rfc3501#section-5.1) it seems that `#`
> can have special meaning and could be used to denote namespaces.
> 
> Is it a configurable option (i.e. is it possible to disable namespaces/shared mailboxes or some
> such) that would result in James allowing mailboxes starting with `#`?
> 
> --
> Wojtek
> 
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