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 Boomerang for Gmail Alternative in 2026

Name: Smart Mailbox Cleaner
Author: Smart Mailbox Cleaner

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

About Boomerang for Gmail

Tagline: Email scheduling and follow-up reminder tool — not actually a cleanup tool

Pricing: Free (10 credits/month) / $4.99/month Personal / $14.99/month Pro

Privacy model: Reads email content for scheduling, follow-ups, and Respondable AI features

Boomerang for Gmail Pros

Excellent email scheduling and send-later features
Follow-up reminders
Respondable AI for better email writing
Established brand since 2010

Boomerang for Gmail Cons

Not a cleanup tool — no mass deletion or storage management
Reads full email content
No undo with label restoration
Doesn't address inbox clutter or storage issues

Why Switch to Smart Mailbox Cleaner?

Purpose-built for inbox cleanup — not email scheduling
Metadata-only scanning — never reads email content
Bulk deletion with AI confidence scoring
30-day undo with original Gmail label restoration
Visual storage breakdown and automated Playbooks

Feature Comparison: Boomerang for Gmail vs Smart Mailbox Cleaner

Feature	Boomerang for Gmail	Smart Mailbox Cleaner
Primary purpose	Email scheduling	Inbox cleanup
Bulk email deletion	No	Yes — thousands at once
Storage management	No	Yes — visual storage gauge
Reads email content	Yes	No — metadata only
Undo with label restore	No	Yes — 30-day
AI safety scoring	No	Yes — HIGH/MEDIUM/REVIEW

Frequently Asked Questions

Is Boomerang for Gmail a cleanup tool?

No. Boomerang is an email scheduling and follow-up tool. It helps you schedule sends and get reminded about unanswered emails, but it doesn't offer bulk deletion, storage management, or inbox cleanup. Smart Mailbox Cleaner is purpose-built for cleanup.

Can I use Boomerang and Smart Mailbox Cleaner together?

Yes. They serve complementary purposes. Use Boomerang for email scheduling and follow-ups, and Smart Mailbox Cleaner for periodic inbox cleanup and storage management.

Why do people compare Boomerang to Smart Mailbox Cleaner?

Both are Gmail productivity tools, but they solve different problems. Boomerang helps you manage when you send and receive emails. Smart Mailbox Cleaner helps you clean up accumulated clutter and free storage space.

Try Smart Mailbox Cleaner free → · Compare Plans