Zimbra Collaboration Suite expunge old messages

Hi, I use Zimbra Collaboration Suite (8.8.7 version, open source edition).
I manage one domain with about 50 mailboxes.
I need to "purge" messages on some mailbox (eg. delete messages older than last year).
I cannot use global retention policy, because I need to take action only on few users.
How can I do this?
Thank you!
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

David FavorLinux/LXD/WordPress/Hosting SavantCommented:
One way to do this is to write a script to emulate IMAP4 protocol to access mailboxes in a list of users you provide.

Then retrieve (LIST) messages for each user + look at dates.

Then delete the message ids which match your date criteria.

You might also pose your question to Zimbra + ask if you can simply delete physical files from disk + Zimbra will correctly recover all indexes. Likely this is true + best ask Zimbra, before you brute force change any disk files.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Email Servers

From novice to tech pro — start learning today.