Test that upper case is allowed in mailbox
Test that upper case is allowed in mailbox

People write their email addresses like this, so we should accept them.

MjAbuz/peoplefinder,ministryofjustice/peoplefinder,ministryofjustice/peoplefinder,MjAbuz/peoplefinder,ministryofjustice/peoplefinder,MjAbuz/peoplefinder,MjAbuz/peoplefinder,ministryofjustice/peoplefinder,ministryofjustice/peoplefinder