Intro
5 min
Microsoft 365 Backup What To Check
Last updated: January 26, 2026
Pro-Owner perspective: This document frames your systems as a technical estate — an asset to be stewarded, documented, and bequeathed. Treat these steps as craftsmanship: protect the continuity, auditability, and transferability of your digital legacy.
Microsoft 365 Backup What To Check
The 60-second version
Microsoft 365 (Exchange, SharePoint, OneDrive) isn’t backed up by default. If a user deletes a file or an account is compromised, that data is gone forever unless you have a backup. Always verify what’s covered, how often backups run, and how quickly you can restore.
What this solves (in real business terms)
Backing up Microsoft 365 helps you:
- Recover deleted files: Restore emails, docs, or contacts accidentally deleted.
- Fight ransomware: Restore data if accounts are hijacked or encrypted.
- Meet compliance: Retain emails and files as required by law.
- Avoid vendor lock-in: Export data if you switch providers.
What it costs (honest ranges)
Backup Solutions
- Basic tools (e.g., Veeam, AvePoint): $3–$10 per user/month.
- Enterprise tools (e.g., Datto, Rubrik): $10–$20 per user/month.
Storage Costs
- Cloud storage: $5–$30 per TB/month (varies by retention).
- Egress fees: $0.05–$0.12 per GB to restore large datasets.
Total Estimates
- Small business (10 users): $300–$1,200/year.
- Mid-size (50 users): $1,500–$6,000/year.
What can go wrong
- Incomplete backups: Some tools miss Teams chats or SharePoint metadata.
- Slow restores: Large mailboxes take hours to recover.
- No versioning: Overwritten files aren’t recoverable.
- Hidden fees: Egress charges for large restores.
Vendor questions (copy/paste)
- What Microsoft 365 data do you back up (e.g., Exchange, SharePoint, OneDrive)?
- How often are backups taken (daily, hourly, real-time)?
- Can I restore individual emails/files, or only full accounts?
- What’s your retention policy (e.g., 30 days, 1 year, unlimited)?
- Are backups encrypted, and can I control the encryption keys?
Minimum viable implementation
Start with:
- Automated daily backups: Use a tool like Veeam or AvePoint.
- Cover all users: Include admins, who often have critical data.
- Test restores: Pick a file and restore it monthly.
- Retention policy: Keep backups for at least 1 year.
When to hire help
Bring in experts if:
- You’re in a regulated industry (e.g., healthcare, finance).
- You need to back up >100 users.
- You require legal hold or eDiscovery features.
- You lack time to monitor backups.