Email Tools

Customer.io's most expansive launch yet brings powerful new ways to engage customers exactly when it matters across expanded triggers, surfaces, and channels. Reach customers with geofencing, Live Notifications, flexible SMS providers, notification inbox, and beyond. Improved WhatsApp management, smarter AI, and more, all from one platform.

Most inbox tools make you build rules first. PureBox skips that - it's personalized from your first scan using AI and your own Gmail history (which senders you open, reply to, or let pile up), so suggestions fit your routine on day one. Every suggestion shows why, and nothing moves until you approve - no black box, no silent deletions. It surfaces what needs your attention, not just what to trash. Your data is never sold; Pro subscriptions fund it.

Migma creates full campaigns before you ask. It understands your goals and events, creates every email, personalizes and localizes it, and renders consistently across inboxes. It handles sending, preferences and compliance, then learns what drives revenue.

Skim is a free, open-source (MIT) email client for Windows. ✂️ Minimal on purpose: no calendar, no rules engine, no bloat. Fewer buttons, less cognitive load. ⚡ Native Rust core (Tauri 2): ~5 MB installer, sub-second cold start, instant full-text search. 🔒 Local-first, offline-ready, zero telemetry. ✦ AI on your terms: bring your own Anthropic or OpenRouter key and Skim drafts replies in your voice and answers questions across your whole mailbox.

Pull your availability from connected calendars, with a single keystroke, within whichever timezone suits your recipient best. No opening the calendar, no timezone maths, and it handles multiple execs too. It's completely private and sits locally on your machine, connecting only to Outlook and Google.

Describe it, and Flodesk Studio designs a beautifully on-brand email in seconds. Built by top designers, accelerated by AI, finished by you. Free in beta.

Toyo is a personal AI assistant that lives in your messages and can call you on the phone. Talk to it like you'd message a coworker. Toyo triages your inbox, preps you for calls, can help keep your projects moving, and pulls answers and context from your company's tools. It works over text and voice: Have it call you when you want to get updates or just talk through some work. It lives in iMessage, so there's no new apps, and no new tabs to manage.

Every Google account in its own room on your Mac, fully isolated. Each one is the real Gmail web UI, with Calendar, Drive, Meet, and Gemini. No server, no subscription: pay once ($19 launch price, $89 after). Switch with ⌘1-9. Native Swift, a 12 MB app. 14-day free trial, no card needed.

AI Emaily is the AI-native inbox that runs like your chief of staff. It reads every message, triages what actually needs you, and quiets the noise. It drafts replies in your own voice — not generic AI text — then schedules and sends across Gmail, Outlook, and any provider from one inbox. Three modes: Manual, Copilot, Autopilot. You approve, it acts, with undo and a full audit trail on everything. Your mail is never used to train models. Start free.

Goals from Loops lets SaaS teams measure whether a campaign actually drove the outcome they care about. Pick a conversion target, choose who should be measured, set an attribution window, and see conversions, enrollments, and impressions right inside Loops.

Banger is a native Mac app for teams running shared inboxes like support@, sales@, and founder@. You and AI agents work the same mailboxes: agents triage, label, and draft with scoped access, while you review before anything sends. Connect your own domain or Google Workspace accounts, search everything, assign threads, and track work on a board. Early access: 14 days free, 2 mailboxes, 100 AI credits, no card. 500 spots now. Mac first, Windows and mobile next.

html.contact turns plain HTML forms into working email forms with attachments, logs, exports, API access, verified routing, domain allowlists, and spam controls. The Free plan is built so you can test the real setup before upgrading, not just sample a few features.

Most people are running email campaigns with damaged domains and they don't know it. Now you can find out quickly and easily. Folderly Lens checks public DNS, authentication, MX, IP rDNS, and blacklist signals, then returns a KILL / REHAB / KEEP verdict with a copyable fix plan. No signup, no mailbox access, no test sends.

Email deliverability on autopilot. A subscription-based, AI-native email deliverability service where AI agents and human experts work as an extension of your team to audit your infrastructure, fix issues, monitor email health daily, and improve inbox placement with weekly reporting.

Supafax is an email-native assistant that learns how you work and prioritizes your inbox, drafts replies, and schedules meetings end-to-end.

Atomic Mail Agentic gives autonomous AI agents their own real @atomicmail.ai inbox to manage fully without human setup, verification, or ongoing intervention. Built on JMAP (RFC 8620), the standard mailbox API LLMs already know fluently, so agents read, send, reply, draft, search, and manage threads reliably with fewer retries. Novel proof-of-work signup delivers a real inbox in ~30 seconds—no CAPTCHA, credit card, domain verification, or mail-server ops.

Blazly Backlinker helps marketers, agencies, and founders build high-quality backlinks without the endless spreadsheets, prospecting, outreach, and follow-ups. Simply enter your website and target keywords. Backlinker discovers relevant backlink opportunities, finds verified contacts, generates personalized outreach emails, and helps you earn authoritative backlinks on autopilot. From prospecting to outreach to guest post creation, everything happens in one streamlined workflow.

Finally, an inbox you'll look forward to. Agents sort your messages, draft your replies, and clear the grunt work behind the scenes, all in a client so well-crafted that email feels light, fast, fun.

Quartz turns Gmail into a focused inbox. It sorts every message by importance, and learns what matters to you over time. When you reply, it drafts in your own voice. And the AI runs entirely on your own Mac, so your mail stays end-to-end encrypted and never shared with AI providers.

Fluxmail helps founders and operators prioritize urgent Gmail threads, draft replies in their voice, and remember important follow-ups.

Founders lose hours everyday to doing email, when they should be spending the time to build and make real progress. Dirac was made to end that. Dirac is an AI-native inbox that scans your threads, drafts replies in your voice, and shows a brief with only what needs your decision, quietly dealing with the 80% of un-important emails in the background. You run your inbox by deciding, not being your own assitant.