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Installation and Configuration Postfix Server on CentOS 7

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Installation and Configuration of Postfix Server on CentOS 7/Red Hat 7 Postfix Server is a Mail Server on Linux base operating system in our case CentOS Linux 7. Postfix is open source Mail Server that use to transfer electronic mails. Postfix package postfix is used as a Mail Transfer Agent (MTA) to send emails by use of Send Mail Transfer Protocol (SMTP port 25), Mail Delivery Agent (MDA) package dovecot is used to deliver emails to local mailboxes by use of Post Office Protocol (POP port 110 and POP3S port 995 ), Internet Message Access Protocol (IMAP port 143 and IMAPS port 993) and Mail User Agent Package mailx is use to sent mails from on email id to another email id. Prerequisites of this Lab Environment  S.no Machine Packages Name/IP Address  1. Mail Server. Postfix, Dovecot and Mailx.  Linux2/192.168.10.216  2. OpenLDAP with DNS Server. OpenLDAP and Bind. OpenLDAP-DNS/192.168.10.215 Installation and Configuration of OpenLDAP Server with DNS Server on CentOS ...