Mail Backup X vs Synology Active Backup for SaaS

Mail Backup X is a mail backup, archive, management, and conversion product for home users and businesses. It backs up Apple Mail, Outlook, Office 365, Thunderbird, Postbox, and online services that support IMAP or Microsoft Exchange. Backups run continuously, and archives can be restored or exported and converted into EML, PST, RGE, MBOX, and OLM formats. Search filters include sender, subject, words, date range, attachment type, and AND/OR queries. Backups can be mirrored to Google Drive, Microsoft OneDrive, Dropbox, FTP, or USB storage. The vendor says archives are encrypted and stored on destinations controlled by the user rather than its servers. If a user loses the personal encryption key, even the vendor cannot decrypt the data. Team Edition adds remote backup management, an admin dashboard, and alerts about team backup status. Personal Edition costs $59, paid once for one user, up to five mail profiles, installation on two computers, and one year of maintenance updates. A fully functional 15-day trial and 24 x 7 email technical support are offered. It supports macOS 10.13 and above and Windows 8 and above, with native NAS apps for Synology and QNAP.

Synology Active Backup for SaaS backs up Microsoft 365 and Google Workspace data to Synology NAS servers for recovery after data loss or service downtime. Microsoft 365 coverage includes OneDrive for Business, SharePoint Online, Exchange Online, and Teams. Google Workspace coverage includes Drive, Gmail, Contacts, and Calendar, including shared drives, labels, and attachments. Microsoft 365 backups can run continuously, manually, or on a schedule; continuous intervals adjust from one to ten minutes based on detected API request rates. Both services support file versioning, and Google Workspace versions can be retained for a chosen period or kept in full. The Microsoft 365 Recovery Portal lets administrators and employees restore or export backed-up data, with self-service access dependent on configuration. The product is a free add-on for a compatible Synology NAS, with unlimited accounts subject to NAS storage capacity. Active Backup for Microsoft 365 requires DSM 6.1-15217 or later. Deduplication requires an x64 NAS using Btrfs, and neither service supports secondary backups. Google Workspace setup requires configuring the Drive SDK API and creating a service key.