Search Again: Re: Case question From: Warren Michelsen Date: Friday, October 12, 2001 Time: 9:11:35 am At 10:59 AM -0500 10/11/01, Len Conrad wrote: >>I'd be interested to know if this is addressed. > >it is > >> So, is case-sensitivity addressed in any RFC? > >start with RFC822 at www.networksorcery.com : > >3.4.7. CASE INDEPENDENCE > >Except as noted, alphabetic strings may be represented in any combination of upper and lower case. > >The only syntactic units which requires preservation of case information are: > >- text >- qtext >- dtext >- ctext >- quoted-pair >- local-part, > >except "Postmaster" > >When matching any other syntactic unit, case is to be ignored. For example, the field-names "From", "FROM", "from", and even "FroM" are semantically equal and should all be treated identically. > >When generating these units, any mix of upper and lower case alphabetic characters may be used. The case shown in this specification is suggested for message-creating processes. > >Note: The reserved local-part address unit, "Postmaster", is an exception. When the value "Postmaster" is being interpreted, it must be accepted in any mixture of case, including "POSTMASTER", and "postmaster". >------------------------- > >Any Internet mail server with case dependence in email addresses is broken. No, Len, as you quite specifically noted above, the "local-part" is exempted from case independence. The local part is the part to the left of the "@" sign. So email account names may quite legally be case-sensitive -- with the exception of the reserved local-part "postmaster" account, which must NOT be case sensitive. > >Len > >< btw, not being a rabbi, mullah, or Bible thumper, I don't accept invitations for debating the semantics of sacred RFC texts. :))) > Not semantics involved. Just gotta know what a "local-part" is. -- Internet Tools for Business -- <http://www.CyberSpaces.net/> E-commerce web hosting

Messages In This Thread: Case question by Mia''s Virtual Post Office on Sep 24, 2001 at 2:06:35 pm Re: Case question by Len Conrad on Sep 24, 2001 at 2:23:06 pm Re: Case question by Mark Hartman on Sep 24, 2001 at 2:34:55 pm Re: Case question by Mia''s Virtual Post Office on Sep 24, 2001 at 2:58:08 pm Re: Case question by Warren Michelsen on Oct 8, 2001 at 7:33:27 am Re: Case question by Len Conrad on Oct 8, 2001 at 11:44:32 am Re: Case question by Len Conrad on Oct 11, 2001 at 9:01:18 am Re: Case question by Warren Michelsen on Oct 11, 2001 at 9:11:17 am Re: Case question by Men & Mice Support on Oct 11, 2001 at 9:25:39 am Re: Case question by Len Conrad on Oct 11, 2001 at 9:49:35 am Re: Case question by Len Conrad on Oct 11, 2001 at 9:55:03 am Re: Case question by Men & Mice Support on Oct 11, 2001 at 10:20:04 am Re: Case question by Warren Michelsen on Oct 12, 2001 at 9:11:35 am Re: Case question by Warren Michelsen on Oct 12, 2001 at 9:14:07 am Re: Case question by Mark Hartman on Oct 12, 2001 at 9:26:46 am