[Dovecot] RFC 2822 - message-id
chopin at sgh.waw.pl
Fri Nov 10 10:42:02 UTC 2006
On Fri, Nov 10, 2006 at 05:35:05AM -0500, Tom Allison wrote:
> I was porting some email from one imap server location to another and ran
> into a feature of something. One of them writes message-id as 'Message-Id'
> and the other writes it as 'Message-ID'. Because of this, all the messages
> are forever different.
> All mail is delivered from postfix and will be in the future.
> But I'm asking which of these syntaxes is correct or if there is a
> right/wrong way of writing the headers? RFC2822 doesn't come right out and
> say it, but all the examples therein are "Message-ID".
> RFC 822 says they are all the same.
Quote from RFC2822:
1.2.2. Syntactic notation
This standard uses the Augmented Backus-Naur Form (ABNF) notation
specified in [RFC2234] for the formal definitions of the syntax of
messages. Characters will be specified either by a decimal value
(e.g., the value %d65 for uppercase A and %d97 for lowercase A) or by
a case-insensitive literal value enclosed in quotation marks (e.g.,
"A" for either uppercase or lowercase A). See [RFC2234] for the full
description of the notation.
Hence the case is irrelevant for header names.
Beware of he who would deny you access to information, for in his
heart he dreams himself your master. -- Commissioner Pravin Lal
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