REJECT mail from nobody

[James R. Stevens]

All,
 
I have read we can't reject mail using the Sendmail hash database using
<>@ becuse thats a null value, so I'm looking for the best way to reject
mail without a from address ("from=<>"). I'm looking at one of the
rulesets, SA or Mailscanner.
 
Mabye a perl expression :    From:    /[\<\>\@$/
 
I could not find the answer in the archives. There maybe a better way,
I'm sure my syntax is wrong above...Help
 
Setup=
RH 9
SendMail 8.12.8
MailScanner 4.29
SpamAssassin 2.63
This is an SMTP gateway, so all mail is destined (Relayed ) to another
Mail server (Exchange). 

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