well,suppose this:

if i want to send SPAM to *@aaa.com, it's so easy for me becaust all i need to do is 
to set my SMTP server as smtp.aaa.com and set my email address as [EMAIL PROTECTED], 
whenever user xxx is valid or not. that's to say, your email server users with get 
SPAMs without end.Anyone who's valid to use [EMAIL PROTECTED] will be bothered just becaust 
the server ACCEPT MAIL ADDRESSED TO A LOCAL RECIPIENT but NEVER CHECK WHETHER THE 
SENDER IS TRULY VALID.

do you think this is also quite normal? Never do i!

what i DO EXPECT is:instead of checking whether the sender's address is @aaa.com, the 
SMTP server will examine whether the sender using [EMAIL PROTECTED] is valid or not. this is 
called a true authentication.

Davy

>Of course Imail will accept mail addressed to a local recipient. It doesn't
>matter if the sender is local or not. How do you expect to get email
>otherwise?
>SMTP auth will require a user account and pass to send mail to EXTERNAL
>domains. Thus preventing you from relaying for anyone else.
>Setup an IMgate or use Declude junkmail if you want to alleviate Spam
>getting to your domains.
>
>Alex
>




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