Hello Zimbra Customers, Partners & Friends, Sometimes it’s necessary to delegate administrative tasks in Zimbra. For example, letting your help desk staff do daily tasks like reset passwords, change account names, unlock accounts and create accounts can really improve your first line support. Zimbra lets you grant permissions that can be set on an account […]
Archive | PowerTips – Admins
Zimbra SkillZ: Add an External Email Warning in Zimbra
Hello Zimbra Customers, Partners & Friends, In today’s blog, I’ll show you how to add an external email warning message in Zimbra when receiving an email from an external domain. This is done using a Sieve filter, and it can be enabled per account, COS, domain and server. First, create /tmp/myfilters su – zimbra nano […]
Zimbra SkillZ: Using Zimbra with Strong TLS Configuration – Get an A+, No Weak Cyphers
By Barry de Graaff on October 20, 2021 in Product News, Community, PowerTips – Admins, Zimbra SkillZ
Hello Zimbra Customers, Partners & Friends, Transport Layer Security (TLS) encrypts data sent over the internet to ensure that eavesdroppers and hackers can’t see what you transmit. This is particularly useful for private and sensitive information such as passwords, credit card numbers and personal correspondence. To learn more about TLS, https://www.internetsociety.org/deploy360/tls/basics This blog shows you […]
Zimbra SkillZ: Enhance Performance Using SSDB on Zimbra
Hello Zimbra Customers, Partners & Friends, Zimbra traditionally stores Authentication Tokens, CSRF Tokens and log-on timestamps to LDAP. On Zimbra systems with a large number of active users, this increases the load on the LDAP server, which can cause LDAP responses to slow down. Zimbra supports storing short-lived data (aka ephemeral data) to a separate […]
Zimbra SkillZ: How to Use SPF, DKIM and DMARC on Zimbra
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, […]
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 […]