How to Test Posfix Mail Service using Telnet


In order to test the mail services working properly, testing needs to be performed. Instead of using GUI mail client or webmail to test the sending and receiving email,you also can use telnet. Telnet is the most basic mail client. It does the same thing as advanced mail client such as Microsoft Outlook and Mozilla […]

How to Fix “cannot restore segment prot after reloc: Permission denied” error While Restarting zmcontrol on Zimbra


Question : I want to start the Zimbra services. But i am getting the following issue while restarting zmcontrol using “zmcontrol start” command as per below error messages : [zimbra@mail ~]$ zmcontrol start Host mail.bloggerbaru.local Starting zmconfigd…Done. Starting logger…Done. Starting mailbox…Done. Starting antispam…Done. Starting antivirus…Done. Starting snmp…Done. Starting spell…Failed. Starting apache…httpd: Syntax error on line […]

How to Install Zimbra Collaboration Suite 7.1.3 Mail Server on Redhat Enterprise Linux 5.5


In this post, i will share with you on how to install zimbra open source mail server on Redhat Enterprise Linux 5.5 server. According to wikipedia, Zimbra Collaboration Suite (ZCS) is a groupware product created by Zimbra, Inc. It was located in Palo Alto, California, USA. In September 2007, The company was purchased by Yahoo! […]

How to Remove Sendmail Service From CentOS 5.5


Sendmail is a program that runs on most servers. Sendmail provides mail-transfer and delivery methods, including the Simple Mail Transfer Protocol (SMTP). However, it is not necessary to have this sendmail. For those who plan to install postfix as an alternative, the can just uninstall the sendamil service to avoid port conflict during installation. In […]