Re: [Exim] quote: operator and empty local-part

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Auteur: Philip Hazel
Date: 2003-09-09 09:22 -000
À: Paul Overell
CC: exim-users
Sujet: Re: [Exim] quote: operator and empty local-part
On Mon, 8 Sep 2003, Paul Overell wrote:

> But when I wish to restore the quoted form of the address using the
> quote: operator as per the example in 17.12.1 "Quoting addresses" in the
> Exim 4 book:
>
>         data = ${quote:$local_part}@???

>
> Exim fails to quote the local-part so I end up with
>
>         @example.com

>
> Which is illegal under RFC2821.


Oh dear. In fact ${quote: is rather overkill for local parts, and there
is a wish list item asking for ${quote_local_part: which is more
accurate.

But both of them should probably quote empty strings; I'd never thought
of that.

> If the quote: operator is intended to produce legal RFC2821 local-parts,
> as the example in the book suggests, then it needs to quote the empty
> string.


It's a by-product that it (usually) produces legal local parts, but a
useful one. So it ought to be fixed, I guess.


--
Philip Hazel            University of Cambridge Computing Service,
ph10@???      Cambridge, England. Phone: +44 1223 334714.
Get the Exim 4 book:    http://www.uit.co.uk/exim-book