case sensitivity

[Dag-Erling Smørgrav]

I discovered by accident that lmtpd (or possibly deliver, or both) is
case-sensitive; mail to DES at DES.NO will bounce with

550-Mailbox unknown.  Either there is no mailbox associated with this
550-name or you do not have authorization to see it.

Is this intentional?  It doesn't seem right; mail addresses are
supposed to be case insensitive.  Can this be fixed in Cyrus, or do I
have to set up my SMTP server (Postfix) to lowercase the address
before delivering each message to Cyrus?

DES
-- 
Dag-Erling Smørgrav - des at des.no

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