"Sunil ." <[EMAIL PROTECTED]> wrote:

>I understand that putting an entry into the badhostfrom file should be able 
>to block all mails from sent from an email source such as [EMAIL PROTECTED]

It's "badmailfrom", and it only blocks messages that include the
listed user/domain in the SMTP "MAIL" command--which doesn't always
match the From header field.

>My mail server is currently hosting multiple domains. I wish to block 
>senders according to my different domains. For example, is it possible to 
>block an email address for myfirstdomain.com and not for myseconddomain.com 
>?? Is there multiple "badhostfrom" files from different domains ??

No, but you could use something like a virus scanner or spam checker
that lets you write customized validation scripts.

-Dave

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