Re: [Exim] exim_dbmbuild and # signs

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Autor: Jochen Erwied
Data:  
A: John Jetmore
CC: exim-users
Assumptes nous: [Exim] install from Metzler site, [Exim] clamming up Exim
Assumpte: Re: [Exim] exim_dbmbuild and # signs
Wednesday, March 3, 2004, 9:06:41 PM, you wrote:

> Is '#' a valid (unquoted) char in a local part? I was unsure on where to
> look.


Although it is quite unusual, it seems to be allowed according to
RFC2822 (ftp://ftp.rfc-editor.org/in-notes/rfc2822.txt):

atext           =       ALPHA / DIGIT / ; Any character except controls,
                        "!" / "#" /     ;  SP, and specials.
                        "$" / "%" /     ;  Used for atoms
                        "&" / "'" /
                        "*" / "+" /
                        "-" / "/" /
                        "=" / "?" /
                        "^" / "_" /
                        "`" / "{" /
                        "|" / "}" /
                        "~"


atom            =       [CFWS] 1*atext [CFWS]


dot-atom        =       [CFWS] dot-atom-text [CFWS]


dot-atom-text   =       1*atext *("." 1*atext)


local-part      =       dot-atom / quoted-string / obs-local-part


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