Should you build your own Missive?
Combine email with internal comments and assignments for a small team
A consolation build is possible, but the paid product's decisive value sits outside a solo rebuild. For Missive, combine email with internal comments and assignments for a small team. The hard boundary is real-time collaboration, many channels, rules, integrations, and shared-inbox reliability, plus mail infrastructure, integrations, and client polish.
ENOriginal research content in English. Original prompt preserved in English.
Build a closest honest personal substitute for Missive in an empty repository.
Use Tauri 2, React, TypeScript, SQLite, IMAP, SMTP, and OAuth where available; do not offer alternative stacks.
The core loop is: connect an existing mailbox, index messages locally, combine email with internal comments and assignments for a small team, and send through the account's normal SMTP service.
Make the first run work locally with one documented command.
Store all user data locally by default and make export straightforward.
Put secrets in .env, ship .env.example, and never commit credentials.
Support one IMAP and SMTP account with credentials stored only in the OS keychain.
Index headers and message bodies locally with resumable sync and a visible status page.
Implement standards-based threading, folders, labels, archive, snooze, drafts, and search.
Render HTML email in a locked-down sandbox and block remote images by default.
Send multipart messages with attachments and preserve a local copy of every draft.
Add export, local cache reset, account reconnect, diagnostics, and safe logging.
Include clear empty, loading, success, and recoverable error states.
Add input validation, safe filenames, and graceful handling of unavailable APIs.
Write focused tests for the core transformation and one end-to-end happy path.
Create a README with setup, architecture, permissions, data location, and backup steps.
Do not add accounts, billing, telemetry, analytics, or a hosted control plane.
Do not claim to reproduce proprietary data, network liquidity, regulated access, or frontier infrastructure.
Deliberately leave out running a public mail server.
Deliberately leave out shared team inboxes and sales workflows.
Deliberately leave out mobile push services and provider-scale spam filtering.
Finish by running the tests and listing the exact commands used.The prompt opens pre-filled in your agent. Review it before running. · this prompt is generated from the build plan · improve it via PR
What would building your own look like?
Connect an existing mailbox, index messages locally, combine email with internal comments and assignments for a small team, and send through the account's normal SMTP service.
What you will need
- existing IMAP and SMTP mailbox
- OAuth client credentials where required
- desktop keychain access
- local disk space
People still pay for Missive because an email client can be rebuilt; operating a trusted mail service with excellent deliverability cannot. The recurring cost buys IMAP quirks, OAuth, MIME, threading, search, attachments, offline sync, notifications, secure storage, and provider changes, not just the visible interface.
xreal-time collaboration, many channels, rules, integrations, and shared-inbox reliability
xmail hosting and deliverability
xpush on every platform
xadvanced team collaboration
xprovider-specific AI and search
Prefer something ready-made?
ChatwootCollaborative email with private notes, mentions and ownership; also handles chat when Missive was doing too much.Open source↗
ZammadA mature team inbox with internal notes and ticket owners; it feels like support software because it is.Open source↗
FreeScoutShared mailboxes, internal notes and assignments without seat fees; chat-style polish is traded for server care.Open source↗View all 4 alternatives to Missive →· Licença, instalação e limitações em cada alternativa.
How much does Missive cost?
- Monthly billing
- $18/mo$18/mo · per person
- Per year
- $216/yr$216/yr
- Annual billing
- $168/yr22% cheaper than paying monthly
- On a Brazilian card, with 3.5% IOF
- R$94.06/moR$878/yr
Saved to My list. You will see a notice on this site when the price changes.
You complete the purchase on Missive’s site. Vibe Radar does not handle payments.
| Plan | Monthly | Annual (per month) | What is included |
|---|---|---|---|
| free | $0/user | $0/user | Up to 3 users; 15 days of email and chat history. |
| starter | $18/user≈ $18 | $14/user≈ $14 | Up to 5 users; unlimited history; up to 10 personal accounts and 5 shared accounts per user; no rules, integrations, analytics, API or AI. |
| productive | $30/user≈ $30 | $24/user≈ $24 | Up to 50 users; up to 1,000 rules; unlimited history; basic analytics, API, integrations and AI. |
| business | $45/user≈ $45 | $36/user≈ $36 | Unlimited users; up to 1,000 rules; unlimited history; advanced analytics, SAML SSO and IP restrictions. |
Free tierUp to 3 users; 15 days of email and chat history
Billing termsmonthly + annual (-20%); 30-day free trial, no card
Additional costsShared accounts are capped at 5 per user; each additional block of 5 shared accounts costs $15/month. Productive and Business AI can use prepaid Missive credits (accounts begin with $5) with a 25% markup over provider cost, or the customer's own API key; annual seats removed mid-term remain billed but can be reassigned.
verified 2026-08-12 · source ↗
Is it cheaper to build or buy Missive?
Adjust the numbers: hours to build, your hourly rate, running costs and the subscription price.
Over 24 months, subscribing is cheaper.
Starting hours estimated from the analysis (closest consolation build: one sitting). Does not price what you give up (support, integrations, security).
Can I rebuild Missive?
Not really. Missive’s value is not the code: Recheck price before merge. See the honest breakdown above.
How much does Missive cost?
Missive costs about $18/mo (Starter, checked 07/31/2026), which is $168 per year.
What do I lose by replacing Missive?
Honestly: real-time collaboration, many channels, rules, integrations, and shared-inbox reliability; mail hosting and deliverability; push on every platform; advanced team collaboration; provider-specific AI and search. If any of those are load-bearing for you, keep paying.
Is there an open-source alternative to Missive?
Yes: Chatwoot (Collaborative email with private notes, mentions and ownership; also handles chat when Missive was doing too much.) Zammad (A mature team inbox with internal notes and ticket owners; it feels like support software because it is.) FreeScout (Shared mailboxes, internal notes and assignments without seat fees; chat-style polish is traded for server care.) All 4 curated free alternatives are at https://viberadar.si/missive/alternatives. The prompt is for when you want it exactly your way.