Inbox Zapper

Aid4Mail is a fast, reliable, and highly accurate tool to collect, recover, search, and convert emails. It supports most mailbox file formats (e.g. PST, OST, OLM, mbox), IMAP accounts (e.g. Yahoo! Mail, AOL) and popular mail service providers (e.g. Microsoft 365, Exchange, Gmail). Aid4Mail can recover double-deleted messages and corrupted emails, and extract MIME data from certain types of unknown file formats through file carving. Aid4Mail provides a large array of tools to search and filter out unwanted emails during conversion. Save time by using native pre-acquisition filters to download a subset of your mail from Exchange, Office 365, Gmail and other webmail services. Use Aid4Mail’s integrated search engine to cull-down your email collection. Its search operators are very similar to Gmail and Office 365. Aid4Mail is used by Fortune 500 companies, government agencies and legal professionals around the world. It is made in Switzerland by perfectionists.

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.