Hi Zimbra Customers, Partners & Friends, This blog is a short “how-to” for setting up SPF, DKIM and DMARC on Zimbra. What is SPF? Sender Policy Framework (SPF) helps prevent email spamming and spoofing by telling the world what servers are allowed to send email from your domain. If an email is sent from user@example.com, […]
Archive | PowerTips – Admins
Zimbra SkillZ: Using Sieve Filters on Zimbra
By Barry de Graaff on July 14, 2021 in Product News, Did You Know, PowerTips – Admins, Zimbra Web Client
Hi Zimbra Customers, Partners & Friends, Sieve is a powerful scripting language for filtering incoming email messages. This blog is a short how-to for using sieve filters on Zimbra webmail. Zimbra supports incoming email filters set by users, but administrators should set up and install sieve filters. First, allow adding email headers to help debug […]
Zimbra SkillZ: Partial Sync for ZCO is Here!
By Gayle Billat on March 17, 2021 in Product News, Open Source, Partners, PowerTips – Admins, Product Updates, Zimbra Web Client
By Popular Demand – ZCO Partial Sync is Here! Happy Days for ZCO Power Users Hello Zimbra Partners, Customers & Friends, Many Zimbra Partners and customers have requested partial sync for ZCO (Zimbra Connector for Outlook) … and it’s here! Are you a ZCO power user? Are your customers or users? Now power users can […]
Zimbra SkillZ: Add a Custom Python 3 Milter to Zimbra! Part 3 of the Zimbra Open Core Series
By Barry de Graaff on March 4, 2021 in Product News, Community, Did You Know, Partners, PowerTips – Admins, Zimbra Server
Hi Zimbra Partners, Customers & Friends, Today I will show you how to create an extension to Postfix. By implementing a Milter (an email extension protocol), you can create an extension that receives events whenever an email is sent or received. Your custom Milter extension can have event handlers for: SMTP events (CONNECT, DISCONNECT) SMTP […]
Updated SAML for Zimbra – Now Supports Single Log Out (updated September 2024)
By Barry de Graaff on March 1, 2021 in Product News, Did You Know, Education, Partners, PowerTips – Admins, SAML
SAML is an open standard for Single Sign-On. When using SAML an Identity Provider (IdP) will take care of user authentication after which users can use their applications without having to log-on to each of them separately. In SAML these applications are called Service Providers (SP). In this guide we will set-up SimpleSAMLphp to act […]
Zimbra SkillZ: Social Justice Zimlet
By Barry de Graaff on February 10, 2021 in Product News, Community, PowerTips – Admins, Zimbra Web Client, Zimlets
Hello Zimbra Customers, Partners & Friends, Today’s new Zimlet from Barry de Graaff, Channel Evangelist for Zimbra Synacor, is the Social Justice Zimlet. While you write an email, this Zimlet suggests alternative words when appropriate. For example: master ldap > primary ldap. This post shows you how to write a Zimlet that uses a keyup […]