On 10/20/2006 10:43 AM, Giampaolo Tomassoni wrote: >> RFC 2821 Section 4.1.4 Order of Commands ...
>> An SMTP server MAY verify that the domain name parameter in the EHLO >> command actually corresponds to the IP address of the client. >> However, the server MUST NOT refuse to accept a message for this >> reason if the verification fails: the information about verification >> failure is for logging and tracing only. ... >> >> It can mean whatever you like (do note "MAY" and "MUST NOT" though). > > It just mean you can't drop a message based solely on the parameter of > the EHLO command. You MAY check it, if you like to. But you MUST NOT > drop it. 2821 is for implementors, not operators. Software developers must not automatically drop mail for this reason -->as a matter of design<-- but as an operator you can do whatever you want with any piece of mail. -- Eric A. Hall http://www.ehsco.com/ Internet Core Protocols http://www.oreilly.com/catalog/coreprot/
