Re: [exim] Mailing Listname with "&" character in prefix

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Author: Graeme Fowler
Date:  
To: exim-users
Subject: Re: [exim] Mailing Listname with "&" character in prefix
On Wed, 2010-05-19 at 23:23 +0300, Odhiambo Washington wrote:
> I am managing a list server running on Mailman+Exim and someone has
> requested that I create a list named (say)
> jack&jill@???


Allowing for shell expansion problems within your login shell, MLM and
MTA might be tricky - but it's worth noting that & is a permissible
character within the specification of RFC5322:


3.2.3. Atom
Several productions in structured header field bodies are simply
strings of certain basic characters. Such productions are called
atoms.
<snip>

atext           =   ALPHA / DIGIT /    ; Printable US-ASCII
                       "!" / "#" /        ;  characters not including
                       "$" / "%" /        ;  specials.  Used for atoms.
                       "&" / "'" /
                       "*" / "+" /
                       "-" / "/" /
                       "=" / "?" /
                       "^" / "_" /
                       "`" / "{" /
                       "|" / "}" /
                       "~"


atom            =   [CFWS] 1*atext [CFWS]


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You may struggle to get mailman to accept the "special" chars which your
shell struggles with, but they're not technically illegal within the
RFCs.

Sorry :)

Graeme