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Sonicwall

I have a sonicwall and don't want to keep port 25 open to the world,any way of closeing it down?
If i have to leave it open,what chages do i need to make to my exchange mail server to really make it secure?
on Exchange 2000/2003
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AlexBrone
Asked:
AlexBrone
1 Solution
 
idyllicsysCommented:
If the final destination for your domain is your Exchange server, then you can't close port 25. If you want to secure everything down, your best bet is to get an anti-virus/anti-spam service, change your MX records to point to them and modify the SMTP rule to only allow traffic from that set of IP's.
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