Re: Why are you interested in iRedMail?
zimbra community 8.8.15 is still commonly used. I think kind of converter (users and mails) would be in demand
This is a good idea.
Our focus is iRedMail Enterprise Edition ("EE" for short) right now, and will release first stable release (v1.0.0) before Jan 15. We may take a look at this later, but cannot promise anything here. And we would like to get a production server for (migration) testing if possible.
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Spider Email Archiver: On-Premises, lightweight email archiving software developed by iRedMail team. Supports Amazon S3 compatible storage and custom branding.