Re: [RCU] Usernames roundcube sends to servers

Steve Perkins wrote:

Pretty stupid thread.

Everyone in the whole world knows that email addresses are case insensitive. Why on earth would case matter?

Thats like having two domains, www.xyz.com compared to Www.xyz.com

Like I said, pretty stupid.

What the hell is everyone talking about?

From RFC 5231 (and the previous ones):

Verbs and argument values (e.g., "TO:" or "to:" in the RCPT command
and extension name keywords) are not case sensitive, with the sole
exception in this specification of a mailbox local-part (SMTP
Extensions may explicitly specify case-sensitive elements).  That is,
a command verb, an argument value other than a mailbox local-part,
and free form text MAY be encoded in upper case, lower case, or any
mixture of upper and lower case with no impact on its meaning.

* 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.  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.  Mailbox domains follow normal DNS rules and are
hence not case sensitive.

(emphasis mine). If you can deliver mail case-sensitively, you should be able to /retrieve/ mail case-sensitively. If your LDA/IMAP server override this (per the recommendation), then so be it; but at that point the case-folding is no longer the responsibility of the client. _______________________________________________ List info: http://lists.roundcube.net/users/