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MTA: A General Overview | Zimbra

Mail Transfer Agent (MTA) is a software that transfers e-mail messages from one computer to another via SMTP. Mail Routing Scenarios We want to introduce you to some pretty common...
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The Importance of Keeping Up with the Latest Updates | Zimbra

Today we want to talk about a very important aspect that should not be underestimated when using Zimbra OSE and Zextras Suite: upgrading.Many of you will wonder why it is...
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Enabling CBPolicyD (Cluebringer PolicyD) WebUI | Zimbra

PolicyD v2 (codenamed "cluebringer") is a multi-platform policy server for popular MTAs. This policy daemon is designed mostly for large-scale mail hosting environments. The main goal is to implement as...
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How To Setup SNI In Zimbra OSE?

In this article, you will learn about the SNI setup in Zimbra. It would be important for you to set up Zimbra SNI as you can serve your users not...
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What is SNI in Zimbra OSE? | Zimbra

In this article, you will learn about SNI and Zimbra SNI. It would be important for you to set up Zimbra SNI as you can serve your users not being...
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Postscreen Attributes Explained | Zimbra

Zimbra Postscreen Zimbra Postscreen is an anti-bot/dos started in Zimbra 8.7. It tackles mail server overload by keeping spambots away and making more SMTP processes available for legitimate clients. Zimbra...
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How To Use Zimbra Postscreen? | Zimbra

In this article, you will learn about using and configuring Zimbra Postscreen. Zimbra Postscreen Zimbra Postscreen is an anti-bot/dos started in Zimbra 8.7. It tackles mail server overload by keeping...
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What Is Zimbra Postscreen? | Zimbra

In this article, you will learn about Zimbra Postscreen and how it works. Zimbra Postscreen Zimbra Postscreen is an anti-bot/dos started in Zimbra 8.7. It tackles mail server overload by...
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How to Verify Your rDNS Record | Zimbra

rDNS Record Verification Assuming you have already created your rDNS record, added it to your DNS, and want to check your rDNS configuration. The rDNS record is stored in DNS...
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How to Verify Your DMARC Record | Zimbra

DMARC Record Verification Assuming you have already created your DMARC rule, added it to your DNS, and want to check your SPF configuration. The DMARC record is stored in DNS...
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How to Verify Your SPF Record | Zimbra

SPF Record Verification Assuming you have already created your SPF rule, added it to your DNS, and want to check your SPF configuration. The SPF record is stored in DNS...
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How to Verify Your DKIM Signature | Zimbra

DKIM Signature Verification for Outgoing Emails Assuming you have already created your DKIM data, added them to your DNS, and want to verify your DKIM configuration for signing outgoing emails....
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How To Configure Zimbra rDNS? | Zimbra

The rDNS or reverse DNS resolves the domain name associated with an IP as opposed to DNS which resolves the IP associated with a domain name. This can be used...
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How To Configure Zimbra DMARC? | Zimbra

DMARC or Domain-based Message Authentication, Reporting, and Conformance is an email authentication, policy, and reporting protocol that defines how your email servers should manage your SPF and DKIM. DMARC protects your domain...
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How To Configure Zimbra SPF to Check Incoming Emails? | Zimbra

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...
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How To Configure Zimbra SPF for Outgoing Emails? | Zimbra

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...
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How To Configure Zimbra DKIM to Check Incoming Emails? | Zimbra

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...
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How To Configure Zimbra DKIM to Sign Outgoing Emails? | Zimbra

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...
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