On 11/29/20 3:48 PM, Nikolai Lusan wrote: > Traditionally SMTP systems forced everything to be lower case ... but > then people like Microsoft started making MTA's that where case > sensitive for the reciever part of the email address (at the time this > was not RFC complianat behaviour).
IIRC the local part of e-mail address was always defined as case-sensitive. BTW: In old Internet mail systems the local part was often the Unix user name. And according to POSIX standard this is case-sensitive (which most people also forget). Ciao, Michael.
