How To Block user to send email locally or externally In zimbra

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Step 1: Open file /opt/zimbra/conf/zmconfigd/smtpd_sender_restrictions.cf and add the below line at the top. check_sender_access lmdb:/opt/zimbra/postfix/conf/restricted_senders Step 2: Open file /opt/zimbra/conf/zmconfigd.cf and add below lines before “RESTART mta”. POSTCONF smtpd_restriction_classes local_only POSTCONF local_only FILE postfix_check_recipient_access.cf Note: We can find like below SECTION mta DEPENDS amavis ———– ———– ———– RESTART mta Step 3: Create a file /opt/zimbra/conf/postfix_check_recipient_access.cf and add the following line. check_recipient_access lmdb:/opt/zimbra/common/conf/local_domains, … Read more

How To Configure and Validate DKIM Records on Zimbra to Sign Outgoing Emails

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DomainKeys Identified Mail (DKIM) lets an organization take responsibility for a message that is in transit. The organization is a handler of the message, either as its originator or as an intermediary. Their reputation is the basis for evaluating whether to trust the message for further handling, such as delivery. Technically DKIM provides a method … Read more

How to Install FastPanel On Centos 7

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Install FastPanel

FastPanel is a free server management control panel that makes it easy to create websites, mail domains, databases, and alot more through a simple web dashboard. In this guide, you will install FastPanel on a Centos 7 server. System requirements: Popular VPS provider with Open port 25 List of VPS Hosting Providers Offering Open Port … Read more

How To Install Plesk On Ubuntu 20.04|Debian 10

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How To Install Plesk On Ubuntu 20.04|Debian 10

The Plesk control panel series are professional hosting management software developed by Parallels (formerly known as SWsoft). Its rich tool suite can help users quickly perform data migration, which is not only easy to operate, but also minimizes downtime. Plesk’s professional design and comprehensive management performance provide host professionals with the most comprehensive and powerful functions, becoming … Read more

How To Install Plesk On CentOS 8 | AlmaLinux 8

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Install Plesk Control Panel on CentOS 8 | AlmaLinux 8

The Plesk control panel series are professional hosting management software developed by Parallels (formerly known as SWsoft). Its rich tool suite can help users quickly perform data migration, which is not only easy to operate, but also minimizes downtime. Plesk’s professional design and comprehensive management performance provide host professionals with the most comprehensive and powerful … Read more

How To Create Amazon EC2 Instances Step by Step tutorial

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Create-AWS-EC2-Instances

In This AWS Lecture, We Will Discuss Create Amazon EC2 Instances. Amazon Web Services (AWS) began to provide IT infrastructure services to enterprises in the form of Web services, which is now commonly referred to as cloud computing. One of the main advantages of cloud computing is the ability to replace up-front capital infrastructure expenses … Read more

How to Install Ubuntu Desktop on a VPS

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Install Ubuntu Desktop on a VPS

How to install the desktop environment in ubuntu vps and correctly set the remote desktop only command line operation. Most server operating systems, including Ubuntu servers, are not equipped with a graphical user interface. The main reason behind this is that GUI takes up a lot of system resources to run basic server tasks. Of … Read more