Firewall Wizards: Re: Raptor 6.0 SMTP Relay Problem

[Randolf-Heiko Skerka <rh-skerka () itsec-debis de>]

On Wed, May 12, 1999 at 09:11:09PM +0200, Holger Heimann wrote:
> When checking out a freshly installed Raptor 6.0 Firewall we found, that the
> SMTP Anti-Relaying mechanism did not work properly for uucp-stylish "rcpt
> to:" addresses.
That´s a well known flaw on many "Anti-Spamming Systems". Many persons
forget to block adresses like "wild%hacker.ex () target mv".

> We do not have access to too many Raptor 6.0 FWs and therefore would
> appreciate to have this problem confirmed by others. Details on the form of
> the SMTP Dialog may be received on request via PM.
I´m not sure if it´s possible on Raptor. But all firewalls I´ve installed
contain an explicit rule like "Deny all adresses containing a '%'", this
works very fine.

Mit freundlichen Grüßen

  Randolf Skerka

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