[Kolab-devel] lower case shared folder names

[Martin Konold]

Am Mittwoch, 9. August 2006 08:48 schrieb Tobias Koenig:

Hi,

> Hmm, but this seems to be a bug IMHO, email addresses are always case
> insensitive AFAIK.

This claim is wrong from an RFC point of view but very true for Joe Average 
and the reason why we introduce the cenversion to lower case for the names of 
public folders.

see also: http://www.ietf.org/rfc/rfc2821.txt

"The local-part of a mailbox MUST BE treated as case sensitive. Therefore, 
SMTP implementations MUST take care to preserve the case of mailbox 
local-parts. Mailbox domains are not case sensitive. In particular, for some 
hosts the user "smith" is different from the user "Smith". However, 
exploiting the case sensitivity of mailbox local-parts impedes 
interoperability and is discouraged.“

I think this problem is caused by the old smtp implementations on case 
sensitive unix filesystems. Back then the mail was directly delivered 
to /var/spool/login. The login and $HOME=/home/login are case sensitive. E.g. 
The user Foo and foo can coexist on a unix system. This makes the implicit 
email addresses foo at unixhost.tld and Foo at unixhost.tld distinct.

Regards,
-- martin

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