Zimbra Mail Server

How to disable Zimbra dnscache service

When you are using the Zimbra mail server behind NAT with Split DNS, you need to disable dnscache service. To

Zimbra Mail Server

How to Zimbra Split DNS with dnsmasq

When you install Zimbra on a server behind NAT, your public IP is not configured in the server, instead, it

Ubuntu

Fake SMTP Server for testing

When you develop a website or an application, you may need to use a fake SMTP server for debugging. Fake

How to configure Hostname in PowerMTA

By default, PowerMTA uses the server’s hostname. You can specify a custom hostname per Virtual MTA. To set a hostname

iRedMail Intentional policy rejection

On an iRedMail, when receiving an email from steam, the mail server rejects the email with the error message “Recipient

554 5.7.1 Unknown Sender in Local Domain

554 5.7.1 Unknown Sender in Local Domain

When sending an email from one server to another, the email gets bounced with an error The error is because

Google Workspace DKIM authentication settings failed.

When generating DKIM in google Google Workspace I got the following error message. This error happens when you have a

.forward file

.forward file

Users can create a .forward file in their home directories that is used by mail servers like exim, sendmail used

postfix mail server

postfix smtp Must issue a STARTTLS command first

When sending an email to a server, mail bounced with the following error message. To fix the error, first enabled

Mailwizz

Mailwizz

Where MailWizz configuration file located?

Where Mailwizz configuration file located?

Where Mailwizz configuration file located?

Mailwizz configuration file located at When you migrate a MailWizz installation, you need to update this file and change Database

How to find Zimbra mail server version

How to find Zimbra version

To find the Zimbra version, log in to the server using SSH, then run the following commands. Switch to user