A real inbox, not a dashboard
Threads, unread, starred, archive, spam, and trash. Everything you expect from Gmail, on your own domain.
Sarah Chen Welcome, your mailbox is ready 3
Alex Rivera Re: Compose flow feedback 5
Billing Invoice #2048 paid
New: Resend supportWorks with your Mailgun or Resend account
A real inbox for your Mailgun and Resend domains.
Mailgun and Resend send your email but have no inbox to read the replies, and they delete stored mail after days. Inboxes connects with your API key and gives you a Gmail-like email client: receive, read, and reply from multiple mailboxes, with threads, search, and delivery tracking.
- $5/month, one plan
- Cancel anytime
- API keys encrypted at rest
Mailgun + Resendbring your own key
Multidomains & mailboxes
Realtimewebhook sync
Deliveryevents in-app
Why Inboxes
Mailgun and Resend are your email infrastructure. Not your inbox.
Provider dashboards are built for sending: domains, logs, routes, and analytics. Mailgun has no inbox at all; Resend shows received mail read-only with no reply button. Inboxes is the client layer on top, so you can work from hello@ and support@ like a normal mailbox, whichever provider is underneath.
Provider dashboardInboxes
Read and reply to incoming email
Mail kept after retention (3 days Mailgun, 30 days Resend)
Threads, labels, and search
Multiple mailboxes and providers in one place
Delivery events per message
How it works
From API key to inbox in minutes
No DNS gymnastics, no forwarding hacks. Three steps and your Mailgun domain has a home.
- 01
Connect Mailgun or Resend
Paste the API key from the provider you already use. Connect both if you run both. Keys are encrypted at rest.
- 02
Pick domains & mailboxes
Choose a domain and add addresses like hello@ and support@. Inboxes installs the webhooks for you.
- 03
Use a real inbox
Read, reply, search, and track delivery for every mailbox, without living in a provider dashboard.
Features
Everything you need to receive and send email on your domain
Inboxes is the inbox your email API doesn't have. Bring a Mailgun or Resend API key and get an email client for your custom domain that you actually enjoy.
Delivery tracking
Accepted, delivered, opened, failed. Per message, without leaving the app.
Accepted Delivered Opened
Multi-mailbox
hello@, support@, and more. Switch the active mailbox from the sidebar instantly.
hello@acme.dev support@acme.dev billing@acme.dev
Connect Mailgun or Resend in one step
Paste your API key, pick a domain, add mailboxes, and install webhooks with one click. Run both providers side by side.
key-••••••••••••••••3f9a Connected · US regionCompose & reply
From-mailbox picker, Cc/Bcc, drafts, schedule send, and undo send.
Labels & rules
Organize mail and auto-route with filters and auto-reply.
Attachments
Upload and download files with secure object storage.
Powerful search
Operators like from:, to:, has:attachment, before:, after:.
Realtime updates
New mail and status changes appear without refreshing.
Encrypted keys
Provider credentials encrypted at rest, never shipped to the browser.
Keyboard shortcuts
Compose, archive, star, and navigate like a power user.
Schedule & snooze
Send later, snooze threads, and keep a clean inbox.
Dark & light
Full theme support across login, settings, and the inbox.
Providers
Mailgun or Resend: your provider, your domains, one inbox
Connect Mailgun, Resend, or both. Add addresses like hello@ and support@ on your domains, switch the active mailbox from the sidebar, and keep inbound routes and webhooks healthy without a settings maze.
- Provider hub with connected status
- Multiple addresses per domain
- One-click webhook install
- Works with Mailgun and Resend today; SES and Postmark on the roadmap
Email providers
MMailgun1 domain · 2 mailboxesConnected
SAmazon SESOn the roadmapComing soon
RResend1 domain · 1 mailboxConnected
Keyboard shortcuts
ComposeC
Search/
ArchiveE
StarS
Speed
Built for speed
Three-pane reading, bulk actions, drag-and-drop to folders, and shortcuts so power users never reach for the mouse.
- Undo send window
- Scheduled & snoozed mail
- Bounce suppressions
- Session management
Pricing
One simple plan
Built for developers who already have Mailgun or Resend. One price, no starter tiers, no upsell maze. We'll expand pricing when more providers (SES, Postmark, …) ship.
Connects to Mailgun
Inboxes
$5 / month
Everything you need for a real inbox on your Mailgun domains, priced for builders, not enterprise procurement.
Start for $5 / monthEverything included
- Unlimited Mailgun domains*
- Unlimited mailboxes / addresses*
- Inbox, compose, threads, search
- Delivery tracking & webhooks
- Rules, labels, attachments, dark mode
- Email support
*Limited by your Mailgun account quotas. Subscribe in the app after signup, billed securely via Paddle ($5/mo). Fees are non-refundable; cancel anytime. See Refund Policy, Terms, and Privacy.
Guides
Mailgun and Resend questions, answered
Short guides on receiving, viewing, and forwarding email with Mailgun and Resend, and where a real inbox fits in.
Mailgun webmail login
Mailgun has no webmail. Here is how to read Mailgun email in a real inbox.
Read more →Resend webmail & inbox
Resend receives email but has no reply button. Here is how to get an inbox.
Read more →Resend vs Mailgun for receiving email
Routes vs MX catch-all, 3 vs 30 days retention, webhook payloads, and pricing.
Read the guide →How to receive emails with Resend
MX record, email.received webhook, Receiving API, replies, and the 30-day limit.
Read the guide →Can Mailgun receive emails?
MX records, inbound routes, webhooks and where received mail actually goes.
Read the guide →How to see email content in Mailgun
View sent, received and failed messages, and why they disappear after 3 days.
Read the guide →Mailgun forward email vs a real inbox
Forward to Gmail with routes, or reply from your own domain in one place.
Read the guide →FAQ
Frequently asked questions
Quick answers about Mailgun webmail, receiving email, and how Inboxes works.
Inboxes is a Gmail-like webmail client for your Mailgun and Resend domains. You connect your provider API key and domain, and Inboxes gives you an inbox, compose, threads, search, and delivery tracking. Inboxes is independent and not affiliated with Mailgun, Resend, or inboxes.net.
No. The Mailgun control panel is built for sending infrastructure: domains, logs, routes, and analytics. It has no inbox for reading and replying to email. Inboxes adds that inbox on top of your Mailgun account.
Resend shows received email read-only in its dashboard for 30 days and has no reply button; replies are an API call. Resend also sells a separate Inboxes product for agents and teams. Inboxes (inboxes.pro) is a different, independent webmail client that works with your Resend account and keeps your mail after the 30 days.
Yes. Point your domain MX records to Mailgun and create inbound routes. Mailgun can then forward, store, or POST incoming mail to a webhook. Inboxes sets up the routes and webhooks for you, so received mail lands in a real inbox.
Messages kept with the Mailgun store() route action are kept for up to 3 days. Inboxes saves its own synced copy, so your mail stays searchable after Mailgun deletes it.
No. Mailgun remains your email infrastructure. Inboxes stores a synced copy of messages so you can search, thread, and manage mail in one polished UI.
Yes. Connect a Resend API key with Full access, pick a domain, and Inboxes installs the webhook for delivery events and received mail. Turn on Receiving for the domain in Resend and add its MX record; every address on the domain then lands in your inbox. You can connect Mailgun and Resend at the same time.
Yes. Connect a Mailgun or Resend account (or both), then add multiple domains and addresses (for example hello@ and support@ on the same domain). Each mailbox sends through its own provider.
One plan: $5 / month with unlimited Mailgun domains and mailboxes (within your Mailgun limits). You subscribe in the app (Paddle) right after signup, before onboarding.
No. Subscription fees are non-refundable. You can cancel anytime; access continues until the end of the paid period. Full details are in our Refund Policy.
During setup we help you configure Mailgun routes and webhooks so new mail appears in your Inboxes inbox in near real time.
Your API key is encrypted at rest on our servers. It is never exposed to the browser after you connect.