Hi,

Is there an easy way of blocking/refusing a certain IP address (or 
small range) to send emails to the smtp-listener ?

Ever since the outbreak of the new Sober virus there are a couple of 
mailservers at a large Dutch provider that keeps on resending mails 
that already were distributed to the lists. People receive there 
multiple copies of emails (and as we have close to 100 lists with in 
total over 50K subscribers this is not funny anymore.
Setting Filter_Also is not the solution as I will need to block the 
actual sending mailserver (not the user posting).

Any help would be very much appreciated!

Regards,

Peter

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InDis
Paracelsuslaan 4
NL-4624 VS Bergen op Zoom
The Netherlands
http://www.indis.nl

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