There are network subnets that have been taken over by Spammers and run by bots. These networks are recorded and documented by Spamhaus and provide you a quick way to modify your firewall to eliminate these know blocks of Spam.
Read more »Blocking Zombie Spam Netblocks
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cRAZY mAD wITH spam
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I have totally gone off the deep end…Spam has made me so mad I have gone on a personal goal to cut the Spam on my servers to 0%…realistic, probably not. Die trying…yep that’s me.
Read more »Automating Log Statistics
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This tutorial will show you how to set up your log statistics to be mailed to you every night so you know what is happening with your Postfix Mail Server.
Set up a cron job so that it will run at 11:55 PM, just before midnight as you want to get all of the logs for that day. Be sure to give enough time for the script to run before the next day
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Configuring the Cyrus Admin in Cyrus-IMAP
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The default admin user is cyrus; however, an additional admin may be needed, or for some reason the default does not work a new admin can be created. Create an admin user name on the system with a password first. cyrus is the default and will be created when cyrus IMAP is installed. However, a good password must be created, see the example.
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Postfix Stress Test with smtp-source and top
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Testing Load with smtp-source and top
In order to evaluate the load on your box you can run smtp-source and combine that with snapshots of top to evaluate the load on the server. Now open two terminals and in one run the smtp-source command and in the other snapshots for top.
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