On Sep 11, 2019, at 1:25 PM, Klaus Steinberger <klaus.steinber...@physik.uni-muenchen.de> wrote: > I never saw any mail system in which the local Part ist Case sensitive!
Every Unix/Linux system (I’d say that represents the majority of mail systems) has a case sensitive local part. Most mail admins have set their systems up to normalize all users on lowercase names, but that is not and has not always been the case. -- Belief is one of the most powerful organic forces in the multiverse. It may not be able to move mountains, exactly. But it can create someone who can.
