szolgalati kozlemeny

[Vajk Fekete]

persze az rfc2821 azt jelenti hogy request for comments 2821, szoval ez 
nem egy szabvany, hanem egy javaslat.


raadasul foglalkozik is a kerdessel:

7.7 Scope of Operation of SMTP Servers It is a well-established 
principle that an SMTP server may refuse to accept mail for any 
operational or technical reason that makes sense to the site providing 
the server. However, cooperation among sites and installations makes the 
Internet possible. If sites take excessive advantage of the right to 
reject traffic, the ubiquity of email availability (one of the strengths 
of the Internet) will be threatened; considerable care should be taken 
and balance maintained if a site decides to be selective about the 
traffic it will accept and process.
In recent years, use of the relay function through arbitrary sites has 
been used as part of hostile efforts to hide the actual origins of mail. 
Some sites have decided to limit the use of the relay function to known 
or identifiable sources, and implementations SHOULD provide the 
capability to perform this type of filtering. When mail is rejected for 
these or other policy reasons, a 550 code SHOULD be used in response to 
EHLO, MAIL, or RCPT as appropriate.

egyertelmuen ugy fogalmaz, hogy megengedheto levelek barmilyen 
szabalyrendszere alapjan valo elutasitasa, csak a megfelelo response 
kodot kell hasznalni.

vajk

Auth Gábor wrote:

>Halihó!
>
>Szima Gábor ezt írta:
>  
>
>>Van mar a vizifonnak SMTP szervere? Mert ha van, akkor azt kellene
>>hasznalni "ugrodeszkanak". Ha nincs, akkor tenyleg gaz, mert az epp
>>kiosztott IP-vel, mint SMTP gateway-el megy tovabb a level, amit persze
>>barki visszautasithat.
>>    
>>
>
>  Tegyük hozzá, hogy az SMTP protokoll éppen aktuális RFC2821-el teljesen 
>ellentétesen. Nem utasíthat vissza egy SMTP szerver egy klienst pusztán az 
>IP címe miatt.
>  
>