Inbox Zapper
Inbox Zapper is a tool that lets you unsubscribe from emails with 1 click. Mass delete and and mass unsubscribe from unwanted emails instantly in an easy to use interface.
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InkMail
InkMail is a lightweight and private email client for Windows 10/11. It pulls all your accounts (Gmail, Outlook, iCloud, Yahoo, Fastmail, GMX, Zoho, Proton via Bridge and more, or any IMAP server) into one unified inbox, with no limit on the number of accounts you can have.
Tracking pixels are blocked by default, while remote images are blocked until you decide to load them. There's no InkMail relay sitting in the middle, no telemetry, and no ads.
Search understands plain sentences like "pdf attachments from sarah last month" and works offline. Conversation view, snooze, undo send and one-click unsubscribe are built in.
Free to use with unlimited accounts, plus an optional one-time lifetime PRO upgrade, never a subscription.
Available in the Microsoft Store.
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Gmailytics
Gmailytics is a Gmail cleanup and inbox analytics tool that helps you take back control of an overflowing inbox. Connect your Gmail account in seconds and see exactly who is sending you the most email, which senders you actually open, and where storage space is being wasted. With one click, unsubscribe from newsletters in bulk, archive or delete thousands of old emails by sender, and free up Google account storage without digging through years of messages. Gmailytics surfaces the noisy senders, promotional clutter, and forgotten subscriptions that traditional Gmail search makes hard to find. Built with privacy as a priority, Gmailytics is CASA Tier 2 certified and Google OAuth verified, meeting Google's highest third-party app standards. A great alternative to Clean Email, Mailstrom, Unroll.me, and SaneBox for users who want a faster, simpler approach. Works in your browser with no install required.
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MailMop
MailMop is a Gmail inbox cleanup tool that analyzes messages in the browser and ranks senders by message volume, helping users identify clutter. Users can delete messages in bulk by sender, set exceptions, unsubscribe from newsletters, block senders, create Gmail filters, mark messages as read, and apply labels. Browser-based processing keeps email content off MailMop's servers. Its source-available code can be inspected, and MailMop has passed Google's CASA 2 security assessment. A free plan includes inbox analysis, sender statistics, and unsubscribing. The Pro plan adds one-click bulk actions, including bulk deletion, advanced filtering and labels, and sender blocking, for $22.68 per year billed annually.
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