Postfix smtpd_client_restrictions

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Keeping known email abusers out is always desired. Postfix has a parameter which is specified in the main.cf file that allows you to refer to these lists. The script I use is as follows...
smtpd_client_restrictions =
	permit_mynetworks
	permit_sasl_authenticated
	reject_unauth_pipelining
	reject_rbl_client cbl.abuseat.org
	reject_rbl_client dnsbl.ahbl.org
	reject_rbl_client dnsbl.sorbs.net
	reject_rbl_client list.dsbl.org
	reject_rbl_client sbl-xbl.spamhaus.org
	#reject_rhsbl_client blackhole.securitysage.com
	reject_rhsbl_client rhsbl.sorbs.net
	permit
Note the commented out line
	#reject_rhsbl_client blackhole.securitysage.com
This is a list that was not properly administered. A friend of mine tried to email me who uses the mac.com domain and was being rejected as an abuser which, of course, is rediculous. I keep the entry as a future reference. There are others out there so if you know of them please let me know. mta.
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Technical Knowhow

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My speciality is technical knowhow. I host all my web sites at home on a pentium 4 based CentOS Linux server. Built the server from scratch, installed CentOS4 (soon to be upgraded to CentOS5), configured (A)pache, (M)ySQL and (P)HP (Linux AMP or LAMP). I installed WordPress, Joomla and Drupal. Most of my sites use WordPress, I find Joomla too rigid in its structure and Drupal is overly complex. A CMS (Content Management System) should be capable of providing you with a quickly running system - Drupal takes too much plotting. If you have a better experience of it then let me know. See below Sponsored Links

Email server software I also run my own postfix/dovecot email server. It's quick but requires regular technical tweaks to keep the spam at bay but, I like it. I built a ZIMBRA email server which was fun as it requires you to run your own DNS server. It all worked eventually but, I am small of spare hardware at the moment so will not be making full use of it until I need it. ZIMBRA email server is a full blown corporate email server system and handles spam very well. If you want to know more then leave me a comment.
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