byteplant
Anti Spam Filter for Exchange, IMail, Domino and any other mail server

NoSpamToday! for Servers - Open Relay Protection

Anti Spam Filter for Exchange, IMail, Domino and any other mail server
NoSpamToday! for Servers not only filters spam and virus mails, but also helps to prevent that your SMTP server becomes an open relay.

Open Relay Protection

If you want to limit the recipients NoSpamToday! accepts, you can configure the valid recipient domains or recipient addresses using NoSpamToday!'s Open Relay Protection. Mail to other addresses is rejected. You can use the wildcard characters ? (any character) and * (any number of any character). Normally, you will want to accept mail for recipients in your domain only, like in *@byteplant.com. Multiple address patterns can be separated by blanks.

NoSpamToday! Open Relay Protection

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You Are In Good Company...

Many leading companies and organizations have already chosen NoSpamToday.

"I just wanted to say THANK YOU for your awesome product NoSpamToday!. Before I installed your product I was getting approximately 400 SPAM messages a day. After installing your product, I haven't received a single one. I am very impressed, your product is very easy to use and works great even in my overcomplicated home network. I just can't praise this product enough. It's such a time saver not to have to worry about SPAM anymore. I have not noticed any false positives and the SPAM catch rate is amazing."
Joe Church

More testimonials...
Have a look at the Customer List