Regain Office 365 Email Backup Tool

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Every plan, in full

On the record

Backup behavior

The FAQ says backup creates a local copy while leaving the original emails in Microsoft 365.regainsoftware.com · read 8 Oct 2026

Data preservation

The product page says the tool preserves mailbox folder hierarchy and source attributes.regainsoftware.com · read 8 Oct 2026

Exchange support

The tool can also back up mailboxes from Live Exchange or Exchange On-Premises.regainsoftware.com · read 8 Oct 2026

Export formats

The product page lists PST, MBOX, EML, EMLX, MSG, PDF, and vCard among its supported export formats.regainsoftware.com · read 8 Oct 2026

Folder selection

Users can select specific mailbox folders for backup.regainsoftware.com · read 8 Oct 2026

Intended users

The product page names IT administrators, businesses, MSPs and IT service providers, Microsoft 365 administrators, and individual users as audiences.regainsoftware.com · read 8 Oct 2026

Mailbox size

The product FAQ says there is no file size limit for backing up an Office 365 account.regainsoftware.com · read 8 Oct 2026

Migration destinations

It lists Gmail, Yahoo Mail, AOL Mail, Hotmail, Zoho Mail, Thunderbird, Google Workspace, and IMAP email clients as destinations.regainsoftware.com · read 8 Oct 2026

Purpose

The tool backs up Microsoft 365 mailboxes to local storage or exports them to other file formats and email clients.regainsoftware.com · read 8 Oct 2026

Security claims

The product page describes local backup storage, user-controlled destinations, and no unnecessary third-party storage.regainsoftware.com · read 8 Oct 2026

Support

The product page advertises 24/7 free technical support through live chat, telephone, and email.regainsoftware.com · read 8 Oct 2026

Supported mailbox data

It supports primary mailboxes, public folders, and archive mailboxes.regainsoftware.com · read 8 Oct 2026

Trial limit

The free demo allows backing up the first 30 items per folder; the licensed version has no such limit.regainsoftware.com · read 8 Oct 2026

Windows compatibility

The listed supported Windows versions include Windows 11, 10, 8.1, 8, 7, and Vista.regainsoftware.com · read 8 Oct 2026

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