[exim] Blocking invalid senders

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Lähettäjä: Luca Bertoncello
Päiväys:  
Vastaanottaja: Exim-Users ML
Aihe: [exim] Blocking invalid senders
Hi, List!

Since some days, we receive a great amount of E-Mail with sender such as:

    retrospectivesdeathbed's@???


Please note the "'"...

All these E-Mail are Spam...

Can I say Exim to deny all E-Mail that don't have RFC-conform senders?
I just have this in my configure:

  deny    message       = Restricted characters in address
          domains       = +local_domains local_parts   = ^[.] : ^.*[@%!/|]


How can I modify this regexp?

Thanks a lot!
--
_______________________________
Luca Bertoncello
-Programmierung / Mailserver-

IMS Internet-Media-Service GmbH
Bayrische Str. 18
01069 Dresden

Fon: +49 351 2112034
Fax: +49 351 2112020
E-Mail: bertoncello@???