>For SMTP security, I would like to use the 'Relay for local hosts only'
>option, however, I would also lock it down to my local IP ranges.
You can't use both. If you use just "Relay for local hosts", you're allowing spammers
to send mail through your server, but only if they are willing to use a (likely fake)
return address on your domain.
You want to use "Relay for Addresses", which lets you restrict to just your local IP
ranges.
> My question: Can I do this by selecting 'Relay for local hosts only'
> and adding every single IP address to Accept.txt? Will this add both
> security methods or will one override the other?
I believe the accept.txt will prevent other SMTP servers from sending mail to your
server (maybe someone can confirm this?). That's a bad thing.
>Am I going overboard with this security measure?
Not at all. If everyone locked down their mail servers, the total amount of spam sent
would likely go down dramatically.
--
-Scott
Declude: Anti-virus and Anti-spam solutions for IMail. http://www.declude.com
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