Do you read my email content?

No. We only access metadata such as message size, labels, and dates. Email bodies are never read or stored.

Are my emails permanently deleted?

Emails are moved to the Gmail Trash folder. Gmail purges the Trash folder after 30 days, giving you a 30-day window to undo any actions.

Best Outlook Clean Up Alternative in 2026

Name: Smart Mailbox Cleaner
Author: Smart Mailbox Cleaner

Looking for a Outlook Clean Up alternative? Smart Mailbox Cleaner offers privacy-first Gmail cleanup with metadata-only scanning, 30-day undo, and a free tier.

About Outlook Clean Up

Tagline: Microsoft Outlook's built-in conversation cleanup tool — but Gmail-only users need not apply

Pricing: Free with Outlook / Microsoft 365 subscription

Privacy model: First-party Microsoft — data stays within Microsoft's ecosystem

Outlook Clean Up Pros

Built into Outlook — no extra install
Conversation cleanup removes redundant messages
Free with any Outlook version

Outlook Clean Up Cons

Outlook-only — doesn't work with Gmail
Limited to conversation cleanup — no bulk deletion by size/date
No confidence scoring or safety features
No undo with label restoration

Why Switch to Smart Mailbox Cleaner?

Works with Gmail — Outlook Clean Up doesn't
Bulk deletion by size, date, sender, category, and attachment type
30-day undo with original Gmail label restoration
AI confidence scoring prevents accidental deletions
First cleanup free

Feature Comparison: Outlook Clean Up vs Smart Mailbox Cleaner

Feature	Outlook Clean Up	Smart Mailbox Cleaner
Gmail support	No — Outlook only	Yes — built for Gmail
Bulk delete by size/date	No	Yes — Custom Scan Builder
Undo with label restore	No	Yes — 30-day
AI safety scoring	No	Yes — HIGH/MEDIUM/REVIEW
Multi-account	One at a time	Up to 5 Gmail accounts
Automated cleanup	No	Yes — Playbooks & Guardian

Frequently Asked Questions

Can I use Outlook Clean Up for my Gmail account?

No. Outlook Clean Up only works within the Microsoft Outlook client and doesn't support Gmail accounts. If you use Gmail, Smart Mailbox Cleaner is purpose-built for Gmail cleanup.

Is Outlook Clean Up better than Smart Mailbox Cleaner?

They serve different ecosystems. Outlook Clean Up is a basic conversation cleanup tool for Outlook users. Smart Mailbox Cleaner offers full-spectrum Gmail cleanup with AI scoring, undo, and automation that Outlook's tool doesn't match.

I use both Outlook and Gmail — which tool should I use?

For Gmail cleanup, use Smart Mailbox Cleaner. Outlook Clean Up only works within Outlook. SMC is specifically designed for Gmail's categories, labels, and storage system.

Try Smart Mailbox Cleaner free → · Compare Plans