What are the main methods for detecting a Zimbra version during a penetration test?

The article outlines several methods, including accessing the 7071 web management page, executing commands on the server, querying the Zimbra SOAP API, using IMAP or IMAP over SSL protocols, and checking a specific URL. Each method has its own advantages and disadvantages; for example, the web management page gives an accurate version but may not always be accessible, while IMAP-based methods can work in more restrictive environments. This is part of a broader series on Penetration Basics – Zimbra Version Detection and similar techniques for other services like Minio or WebLogic.