I guess your complaint is that SMTP Server is clustered resource but SMTP
clients are not... I suppose you don't need to allow inbound connectivity to
the nodes?

Signature
Svyatoslav Pidgorny, MS MVP - Security, MCSE
-= F1 is the key =-
> After hours of twicking, I was amazed to find that you needed to allow all
> the three external ip address : port 25 to any one the firewall. Shouldn't
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> Regard
> JB