Am 30.07.2015 um 01:53 schrieb Bill Cole:
Does this text look at all familiar?Verbs and argument values (e.g., "TO:" or "to:" in the RCPT command and extension name keywords) are not case sensitive, with the sole exception in this specification of a mailbox local-part (SMTP Extensions may explicitly specify case-sensitive elements). That is, a command verb, an argument value other than a mailbox local-part, and free form text MAY be encoded in upper case, lower case, or any mixture of upper and lower case with no impact on its meaning. 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.
and then comes the real world......... * no mailserver on this world treats the local part case-sensitive * you sell "ha...@example.com" is a different person than "ha...@example.com"? * well, how do you handle half of your users just for fun using caps in their mail client and the other half don't
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