Re: [Declude.JunkMail] How can I whitelist my users? Reverse DNS?

[Matthew Bramble]

Whitelisting by IP is the safest since it is the hardest to spoof.  
Whitelisting by reverse DNS would do no better than by IP because you 
have off-network users connecting directly to your mail server (seen 
with that X-Declude-Sender entry), so choose IP over reverse DNS.  The 
best solution though would be to upgrade to IMail 8 and Declude 1.76 in 
order to make use of Declude's WHITELIST AUTH functionality which will 
whitelist SMTP AUTH'ed users.  There have been enough reports about 
IMail 8 having issues (only on the 8.03 release) to scare me away from 
the rush to upgrade.

Matt



Marc Catuogno wrote:

I am running IMAIL 7.15 and Declude 1.75.  I knew I had a big no-no in
my Global file; whitelist from prudentialrand.com.  A spammer has now
been exploiting it.  How can I get my users whitelisted so they can
communicate with each other without worrying about being filtered
without letting the spammers use it?
I wanted to use whitelist REVDNS  prudentialrand.com would that work???

It does sometimes seem that e-mails have the IP address of whatever ISP
I happen to be connected to and not the IP of my mailserver:
X-Declude-Sender: [EMAIL PROTECTED] [67.83.160.48]

That IP is optonline and not my mailserver IP. Does that seem right?

 

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