Bug#486795: Bug#486797: qa.debian.org: email addresses are case-insensitive

["Adam D. Barratt" <adam@adam-barratt.org.uk>]

Christoph Martin wrote:
> If a maintainer has some packages with his email address in different
> case in the maintainer field they end up on different pages on
> qa.debian.org. See for example:
[...]
> Ony should get the same page independent of the case of the maintainer
> email.
>
> Probably this is also the case for submitter emails.

Technically, e-mail addresses (well, local parts) /aren't/ case insensitive; 
RFC2821 section 2.4 says (in part):

"
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.e. it's unlikely to happen that FOO@example.com and Foo@example.com are 
different mailboxes but it's permitted.

Adam