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We have multiple links available to check if the mail server are correctly configured. To check reverse DNS http://viewdns.info/ http://mxtoolbox.com/ Check MX records for domain http://mxtoolbox.com/NetworkTools.aspx http://viewdns.info/reversedns/ Check if the IP/domain is blacklisted for spam http://mxtoolbox.com/NetworkTools.aspx http://viewdns.info/spamdblookup/ http://www.abuseat.org/lookup.cgi Check if … Continue reading
Make sure the Postfix is running with non-root account: root@Philip:~#ps aux | grep postfix | grep -v ‘^root’ Change permissions and ownership on the destinations below: root@Philip:~#chmod 755 /etc/postfix root@Philip:~#chmod 644 /etc/postfix/*.cf root@Philip:~#chmod 755 /etc/postfix/postfix-script* root@Philip:~#chmod 755 /var/spool/postfix root@Philip:~#chown root:root … Continue reading
Whitelisting can help you to get your emails reach inbox instead of spam folder, i will teach you now how to whitelist your self on some spam filter systems and some email providers. First of all you must have a … Continue reading
You can rotate your Server IP address pool in Linux server by using iptable NAT Postrouting. I assume you have 8 public IP addresses (x.x.x.1 TO x.x.x.8) configure on Linux postfix server. Now we rotate only SMPT (port no. 25) … Continue reading
HOWTO Virtual Mail Hosting on CentOS 6.x – Postfix MySQL Dovecot PostfixAdmin Amavisd-new Spamassassin Clamav DKIM SPF
Introduction This is an advanced email server configuration. This configuration will allow you to serve multiple domains on one server. This howto will allow you to setup a server that is one of four mail server types: Mail server with … Continue reading