Mailstrom
Web-based inbox cleaner for bulk deleting and unsubscribing
What is Mailstrom?
Mailstrom is a web-based inbox cleaning tool from 410 Labs that connects to an existing mailbox over IMAP. It groups messages into bundles by sender, subject, date or size so that hundreds or thousands can be deleted, archived or moved at once, and it adds unsubscribe, block and automatic rules to keep the inbox clear afterwards. It works with Gmail, Outlook, Yahoo, AOL, iCloud and other providers that support IMAP.
Mailstrom is a paid product with a free trial, starting at $9 per month, or $59.95 per year (Basic, 1 email account). See every plan
Good for
- Clearing thousands of old messages out of a neglected inbox
- People who want to choose what goes themselves instead of relying on AI sorting
- Cleaning several mailboxes: Pro covers 20 email accounts
Worth knowing
- It runs in the browser only; the site lists no mobile or desktop apps.
- The free trial is a one-time snapshot of up to 5,000 messages, and only 25% of them can be deleted, archived or moved.
- It works over IMAP, so POP-only accounts and Exchange servers without IMAP enabled cannot be connected.
- Basic is capped at 1 email account and 10,000 emails, and the FAQ says folders other than the inbox cannot be organized yet.
Key features
- Bundles of related mail
- Groups inbox messages by sender, subject, date and size so that tens, hundreds or thousands of them can be deleted, archived or moved to a folder in one action.
- Unsubscribe
- From the Mailing Lists tab, Unsubscribe sends a request email to the list owner. If the list gives no unsubscribe address, its web page opens in a new tab instead.
- Block
- Removes the selected messages and creates a rule that keeps future mail from the same sender, mailing list or subject out of the inbox. Available to subscribers.
- Chill and Expire
- Chill takes messages out of the inbox and returns them on a date you choose. Expire removes mail from a sender or mailing list after a set period. Both need a subscription.
- Automatic move rules
- A move can be saved as a rule, so future messages that match a sender or subject are filed into the chosen folder as they arrive. Subscribers' mail is loaded continuously.
- Undo and task history
- Actions are carried out by your email service and are not permanent: deleted mail goes to its trash, and an Undo feature reverses any command from the task list.
Mailstrom pricing
- Starts at
- $9 per month, or $59.95 per year (Basic, 1 email account)
- Free plan
- None
- Free trial
- Free trial, no credit card: a snapshot of up to 5,000 inbox messages, of which 25% can be deleted, archived or moved
| Plan | Price | What you get |
|---|---|---|
| Basic | $9per month, or $59.95 per year | 1 email account with up to 10,000 emails, 200 smart filters, unlimited email removal, and Chill, Expire and Block. |
| Plus | $14per month, or $99.95 per year | 3 email accounts with up to 250,000 emails and 400 smart filters. |
| Pro | $29.95per month, or $199.95 per year | 20 email accounts with unlimited inbox size and 1,000 smart filters. |
Read from mailstrom.co on Oct 9, 2026. Prices change, so confirm with Mailstrom before you buy.
Ways to pay less
- Annual discountAnnual plans are marked as saving 40%
The subscribe page labels annual billing as saving 40%: Basic is $59.95 a year against $9 a month, Plus $99.95 against $14 and Pro $199.95 against $29.95.
Stated on mailstrom.co
Works with
Mailstrom alternatives
- Mailstrom vs Clean Email
Free plan · from $9.99/mo
- Mailstrom vs Leave Me Alone
Free trial
- Mailstrom vs SaneBox
Free trial · from $6.99/mo
- Mailstrom vs Inbox Zero
Free trial · from $18/mo
Common questions
Is Mailstrom free?
No, Mailstrom is a paid product, but you can try it first. Free trial, no credit card: a snapshot of up to 5,000 inbox messages, of which 25% can be deleted, archived or moved.
How much does Mailstrom cost?
Mailstrom lists 3 plans. Basic: $9 per month, or $59.95 per year. Plus: $14 per month, or $99.95 per year. Pro: $29.95 per month, or $199.95 per year. Prices were read from mailstrom.co on Oct 9, 2026.
What platforms does Mailstrom work on?
Mailstrom is available on Web.
Does Mailstrom offer any discounts?
Mailstrom publicly lists the following: Annual plans are marked as saving 40%.
Does Mailstrom have an Android app?
No Android app was listed when its pages were read on Oct 9, 2026. Mailstrom is listed for Web.
Does Mailstrom have an iPhone app?
No iPhone app was listed when its pages were read on Oct 9, 2026. Mailstrom is listed for Web.
Is Mailstrom open source?
Mailstrom is not described as open source on its own site, as read on Oct 9, 2026.
What does Mailstrom integrate with?
Mailstrom's listing names Gmail, Outlook, Yahoo Mail, AOL, iCloud and Microsoft 365. A listing names up to eight integrations, so it may connect to more.
Who makes Mailstrom?
Mailstrom is made by 410 Labs.
What are the alternatives to Mailstrom?
The closest alternatives to Mailstrom in our directory are Clean Email, Unroll.Me, Leave Me Alone, SaneBox and Inbox Zero. Each one has a side-by-side comparison with Mailstrom.
Sources for this page
The prices, plans, platforms and features above were read from these pages on Oct 9, 2026.