How To Configure Zimbra SPF to Check Incoming Emails?

SPF or Sender Policy Framework is an email authentication method that identifies which mail servers are allowed to send emails on behalf of your domain. I can forge an email header to...

How To Configure Zimbra SPF for Outgoing Emails?

SPF or Sender Policy Framework is an email authentication method that identifies which mail servers are allowed to send emails on behalf of your domain. I can forge an email header to...

How To Configure Zimbra DKIM to Check Incoming Emails?

DKIM or DomainKeys Identified Mail is an email authentication method that tries to identify email spoofing attempts (creation of email messages with a forged sender address). DKIM enables you as the receiver of the email to verify...

How To Configure Zimbra DKIM to Sign Outgoing Emails?

DKIM or DomainKeys Identified Mail is an email authentication method that tries to identify email spoofing attempts (creation of email messages with a forged sender address). DKIM enables you as the receiver of the email to verify...

Email Protection Routines

After installing Zimbra Collaboration Suite, there are some configurations you may want to set up in order to improve the security of sending emails to other email systems. Phishing and...

Zimbra Multi-Server Installation on Ubuntu LTS

Note: Zimbra contains a set of modules that can be installed on the same server (single server installations) or that can be distributed across multiple servers (multi-server installations). If you...