Re: mail forwarding problem

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zephod@xxxxxxxxxx wrote:

The RFCs specify that the local part of email addresses are case sensitive.On many hosts case mapping is done when delivering the message locally,
but no MTAs should be messing with it until that point.

It Looks like Bruno is correct. From RFC 2821, Simple Mail Transfer
Protocol, Para. 2.4 General Syntax Principles and Transaction Model:

...
"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."

RFC's apply to the message in the wire transport format which must be portable across all systems. The point of this is that the handling of the local part must be left up to the local systems. What happens during delivery is entirely up to the local conventions. Domains are case insensitive because that's already defined in DNS.

--
  Les Mikesell
   lesmikesell@xxxxxxxxx


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