Best Authentication Methods for Zimbra – System Administrators’ Most Requested Features | Zimbra

Zimbra OSE is a complete email solution. It offers lots of customization compared to G Suit and M365. Still, it needs some attention from the system admins perspective to make...

SpamAssassin | Zimbra

Regarding spam protection strategies in Zimbra, a mention deserves SpamAssassin, an Open Source anti-spam platform that can provide system administrators with a filter that can classify emails and block spam....

Firewall ports in Zimbra | Zimbra

One of the main weapons of modern cybercriminals is the port scanner, thanks to which they find servers that are susceptible to certain vulnerabilities and then attack them. That is...

How to install and update Let’s encrypt for Zimbra | Zimbra

Using certificates to secure your data and mail traffic is something that is extremely important. We have seen, in the " Zimbra SSL/TLS Commercial Certificate " article, how they work...

Zimbra Collaboration Suite and Anti-Phishing | Zimbra

Let's get back to dealing with security and especially email security, going to address a delicate and extremely important topic like Phishing and see what measures can be taken in...

Enterprise Security black, white and gray lists | Zimbra

Zimbra incorporates a spam filter that allows you to reliably protect your company's mail from receiving infected messages that are not related to business correspondence. We've seen how to manage...