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An email warmup and deliverability platform that tests inbox placement and monitors domain authentication.
Watch out · Works with Gmail, Outlook, and custom SMTP.
Free
What to know▼
How it works
Automates inbox placement testing across 8,400+ real seed inboxes and continuously monitors SPF/DKIM/DMARC authentication, with staged domain reputation repair.
Pricing
Free forever for up to 2 mailboxes; paid plans from $19/mo.
We check every product on this page once a day and record whether it still answers.
A disposable email service with reusable inboxes that, unlike typical temp mail, don't vanish after 10 minutes, usable free without signup.
FreeNo sign-up
What to know▼
How it works
Free tier gives a reusable disposable inbox with no signup; paid tier adds private inboxes, 30-day addresses, full mail history, ad removal, and up to 100 mailboxes.
Pricing
Free with ads; paid 'Pro' tier removes ads and adds more mailboxes.
We check every product on this page once a day and record whether it still answers.
Instant, no-signup temporary email aliases with rotating domains to dodge blacklists, plus a public API for developers who want to build it into their own workflows.
FreeNo sign-upData stays with you
What to know▼
How it works
Creates custom, instant temporary email aliases (any inbox name) without sign-up, receiving emails in real-time from multiple rotating domains to avoid blacklists; also offers a public API and open-source frontend.
What's different
Rotating domains to avoid blacklists, plus no popups, timers, or tracking, unlike traditional temp mail tools.
Pricing
Free.
Best for
People needing disposable email for sign-up verifications or testing, and developers who want to build disposable email into their own workflows via the API.
We check every product on this page once a day and record whether it still answers.
Gives you one link that lets an AI assistant triage visitor requests before sending you a pre-triaged, structured summary to approve, instead of an open inbox anyone can message.
Free
What to know▼
How it works
Visitors ask the assistant on your link, which questions them and structures the request; your inbox receives it pre-triaged with reasons, and approving can auto-offer meeting times or hand over recallable files. Also agent-readable via MCP.
Pricing
Free forever to reach; nobody can pay to jump the queue.
We check every product on this page once a day and record whether it still answers.
Checks grammar and rewrites text right inside Gmail, LinkedIn, X and Reddit, using a Gemini API key you provide yourself, free and open source, no subscription.
FreeNo sign-upOpen source
What to know▼
How it works
Checks grammar and rewrites text inline on any website — Gmail, LinkedIn, X, Reddit — using your own free Google Gemini API key.
What's different
Free and open source, and runs on a Gemini key you supply yourself instead of a paid subscription.
Pricing
Free, no account or subscription.
Best for
People who want a Grammarly-style writing checker without paying for a subscription or handing over data to a third-party service.
We check every product on this page once a day and record whether it still answers.
AI assistant connected to Gmail, Calendar, Drive and Square that runs recurring briefings/reports and drafts from thread context.
Free
What to know▼
How it works
Connects to Gmail, Calendar, Drive, and Square so it already has context; runs recurring tasks like a morning briefing or daily revenue report on a schedule, and drafts from thread context on request.
We check every product on this page once a day and record whether it still answers.
A desktop email client that syncs your mailbox into local SQLite and searches it by meaning without cloud calls. Free, open source, no account or telemetry, for Gmail, Outlook or any IMAP inbox.
FreeNo sign-upOpen source
What to know▼
How it works
Syncs your whole mailbox into a local SQLite database and lets you search it by meaning without any cloud calls, with keyboard-speed triage. Supports Gmail, Outlook, and any IMAP account, plus a CalDAV calendar.
What's different
Open source with no account and no telemetry.
Pricing
Free.
Best for
People who want a fast, keyboard-driven email client that keeps their mailbox local.
We check every product on this page once a day and record whether it still answers.
A tool that watches your mailboxes over IMAP and uses AI to move legitimate emails wrongly flagged as spam back into the inbox, instead of you checking the spam folder manually.
Free
What to know▼
How it works
Monitors mailboxes via IMAP and moves wrongly-flagged legitimate emails back to the inbox using AI.
Pricing
First 100 AI checks per month are free, then about $0.01 per check, prepaid rather than subscription, with unlimited mailboxes.
We check every product on this page once a day and record whether it still answers.
A browser tool that rewrites text in place across Gmail, LinkedIn, Slack, and other fields in your chosen tone.
Watch out · Supports 30+ languages; privacy-first processing.
FreeNo sign-upData stays with you
What to know▼
How it works
Adds a click-to-rewrite AI button inside text fields you already use — Gmail, LinkedIn, Slack, job applications — letting you pick from 10 tones and get polished text in place.
We check every product on this page once a day and record whether it still answers.
Converts any logo into the strict SVG format required for BIMI so your verified brand logo shows in Gmail and Apple Mail, plus a free DMARC audit; a niche tool for email-deliverability and brand teams.
FreeNo sign-up
What to know▼
How it works
Converts any PNG, JPG or SVG logo into the strict W3C SVG Tiny P/S format required for BIMI, and also runs a DMARC audit and generates the needed DNS TXT record.
What's different
Handles the specific W3C-compliant SVG conversion that most existing logos fail, which is the main blocker to getting BIMI working.
Pricing
Free, no account required.
Best for
Email-deliverability and brand teams trying to get their verified logo showing in Gmail and Apple Mail.
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