Re: [EXIM] Exim 2.02 and "malformed local part"

Page principale
Supprimer ce message
Répondre à ce message
Auteur: Philip Hazel
Date:  
À: Per Steinar Iversen
CC: exim-users
Sujet: Re: [EXIM] Exim 2.02 and "malformed local part"
On Fri, 18 Sep 1998, Per Steinar Iversen wrote:

> Exim 2.02 will bounce mail coming from
> ".test@somewhere", while mail from
> "test.test@somewhere" will work.
> This is a real example:
>
> >>> MAIL From:<.test@???> SIZE=5
> <<< 501 <.test@???>: missing or malformed local part
>
> I noticed this when mail from a real user
> bounced. Why anybody would want to start
> their mail adresse with "." is not obvious
> to me, but it should be legal.


>From RFC 821:


            <local-part> ::= <dot-string> | <quoted-string>
            <dot-string> ::= <string> | <string> "." <dot-string>
            <string> ::= <char> | <char> <string>
            <char> ::= <c> | "\" <x>
            <c> ::= any one of the 128 ASCII characters, but not any
            <special> ::= "<" | ">" | "(" | ")" | "[" | "]" | "\" | "."
                      | "," | ";" | ":" | "@"  """ | the control
                      characters (ASCII codes 0 through 31 inclusive and
                      127)


Thus it is not legal to start a local part with a dot, unless you
enclose it in quotes or precede it with a backslash. This is also true
for RFC 822 addresses.

-- 
Philip Hazel            University of Cambridge Computing Service,
ph10@???      Cambridge, England. Phone: +44 1223 334714.



--
*** Exim information can be found at http://www.exim.org/ ***