Postscreen Attributes Explained

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...

How To Use Zimbra Postscreen?

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...

What Is Zimbra Postscreen?

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...

How to Verify Your rDNS Record

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...

How to Verify Your DMARC Record

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...

How to Verify Your SPF Record

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...