ZCS Administrator Guide 7.2.1
ZCS Administrator Guide 7.2.1
Open Source Edition

Zimbra Mailbox Server > Message Store

Message Store
The Zimbra Message Store is where all email messages reside, including the message body and any file attachments. Messages are stored in MIME format.
The Message Store is located on each Zimbra server under
/opt/zimbra/store. Each mailbox has a dedicated directory named after its internal Zimbra mailbox ID.
Single Copy Message Storage
Single copy storage allows messages with multiple recipients to be stored only once in the file system. On UNIX systems, the mailbox directory for each user contains a hard link to the actual file.
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