R6 smtp 'mail forging' protection

[peterve]

Config :
R6.0.1, anti-relay parameters set and working;
Global Domain doc :
primary internet domain : a.com
secondary internet domains : b.com; c.com

I've configured my R6 config document to block incoming mail to domains a.com; b.com and c.com

when I telnet to port 25, and try to send an email coming from someone@a.com, then it is blocked (as expected)
But when I do the same from someone@b.com or someone@c.com, then these emails are not being rejected...

What is wrong here ?
Known bug in 6.0.1 ? --------------------------------------------------------------------

http://kickme.to/dpsecurity

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[DonTheDude]

Can you paste in the exact telnet commands you are using, as well as let me know what field you are putting your restrictions in? (In the config doc)