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Features

Everything an email goes through.

Nexmail follows a message from the moment it reaches your domain to the moment the reply is delivered, and keeps the meetings it sets up on a calendar the team shares. Open any stage to see exactly what it does.

01The stages

Six stages, in the order they happen.

  1. 01ReceiveMail for your domains arrives through Resend or your own mail server.
    • Inbound through Resend, or a self-hosted Postfix or Mailu relay that posts signed messages.
    • A webhook that cannot save a message answers with an error, so the sender retries instead of the mail vanishing.
    • Duplicate deliveries are recognised and stored once.
    • Attachments are kept on local disk or any S3-compatible bucket.
  2. 02RouteEach address belongs to a Slack channel, set by rules you control.
    • Rules for an exact address, a whole domain, a domain fallback and a workspace fallback, checked in that order.
    • Mail that matches nothing is stored and listed under Unrouted. It is never discarded.
    • Replies stay in one Slack thread, and moving a route moves the next message with it.
    Try the routing demo
  3. 03AnswerA shared inbox where the team assigns, labels, notes and replies.
    • Assign a conversation, add labels, and leave notes only your team can see.
    • Snooze a thread until later, or set a follow-up that brings it back if nobody replies.
    • Drafts save as you type. Reply from the inbox, the compose page or straight from Slack.
    • Changed your mind? Every send has a few seconds to undo it.
    • Forward a message or a whole thread, attachments included.
    • Mark a thread unread for the whole team, and see who has already read it.
    • Move a conversation to Trash and restore it later. Nothing in Trash is deleted.
    • Keyboard first: j and k to move, x to select, Enter to open, c to compose, ? for the full list.
    • An assistant suggests tidy-ups, like threads nobody owns, and changes nothing until you click.
    Try the inbox demo
  4. 04CheckEvery send is read for problems the recipient would see before it leaves.
    • Stops a link whose text names one site and opens another, an executable attachment, a spoofed display name, or an address that unsubscribed.
    • Warns, and never blocks, on SPF, DKIM, DMARC and provider health.
    • An override is allowed and recorded in the audit log under the name of the person who made it.
    Try the pre-send check
  5. 05SendReplies go out through whichever provider is healthy, and wait when none is.
    • Resend, Amazon SES, Brevo, SMTP2GO or any SMTP server, in an order you choose.
    • Three failures in a row open a provider’s breaker and traffic moves to the next one.
    • With no provider available, mail waits in the queue. It is never marked failed for that.
    • Bounces and complaints come back from each provider and update the suppression list.
    Try the failover model
  6. 06LimitDaily ceilings and an emergency stop keep a mistake from becoming a flood.
    • Daily limits for the whole workspace, for each provider and for each sending domain.
    • Reaching a limit schedules mail for the next window rather than failing it.
    • One switch in Settings holds every outgoing message. Incoming mail keeps arriving.
02Calendar and meetings

Your meetings, next to your mail.

The calendar fills itself from your email, syncs with the ones you already use, and takes bookings.

Team and personal calendars
A Team calendar everyone shares, your own private one, and the calendars you already use. Google, Outlook, iCloud, Fastmail and any CalDAV server sync both ways; any calendar link (ICS) can be added read-only.
Meetings straight from your email
Invites, with their updates and cancellations, land on the calendar exactly. “Call on Thursday at 3pm” in an email becomes a tentative event, and each thread shows the meetings it set up.
Quick add in plain words
Type “Lunch with sam@acme.com Friday 1pm for an hour” and the event opens filled in for you to check. Nothing is saved until you do.
Booking links
Share a link and people pick a free time from your calendars. The booking lands on your calendar with an invite for both of you, a Google Meet link when it goes on a Google calendar, and a link to cancel.
Meeting notetaker
On the Team plan, send a notetaker to a Meet, Zoom or Teams call. The transcript and a summary land on the event, on the email thread and in its Slack thread.
03Around the inbox

Also in the box.

Sales pipeline and leads
Turn it on in Settings and everyone who replies lands on a pipeline board, with stages, owners, a due-today list, bulk actions and campaigns started from a selection.
Draft with AI
With the sales pipeline on, ask for a first draft of a reply, a new email or a campaign. It fills the composer and nothing else: a person reads it, edits it and presses Send.
Gmail and Google Workspace
Connect a Gmail or Workspace account with an app password and skip DNS entirely. Mail arrives in Nexmail and replies go out through Google as you.
Outreach campaigns
Import recipients from a spreadsheet, a paste or the CRM, review the list, get it approved and send within your limits. Schedule and pace a campaign, follow up until someone replies, and A/B test the subject. Opens, clicks and one-click unsubscribe are built in.
Contacts and newsletters
Everyone you email becomes a contact. Import more, sort them into lists and tags, and run newsletters with a public sign-up page.
Templates with variables
Save a subject and body once and use it in compose or in a campaign. Variables like {{first_name|there}} fill in from the contact, and every edit keeps its own version.
AI tools over MCP
Connect Claude, Cursor or another MCP client. It can read, search, send and reply, list, create, move and delete calendar events and find free time, but only within what the person who connected it can see, and it cannot override a blocked send.
Separate workspaces
Each organisation has its own domains, inbox, routes, providers and team. Nothing crosses from one to another.
Guided domain setup
Nexmail lists the DNS records to publish, or publishes them for you on Cloudflare, Vercel or DigitalOcean, checks each one through public resolvers and finishes with a test send.
Team and roles
Invite people by email, choose who is an admin, and let anyone reset a forgotten password on their own.
Your logo on outgoing mail
Upload a logo once and it appears in the messages your team sends.
A record of every message
Every email in and out is stored with its delivery history, so “did it arrive?” takes seconds to answer.
04Keyboard

Never reach for the mouse.

The inbox answers to the same keys as the mail clients your team already knows.

jor↓
Next conversation
kor↑
Previous conversation
x
Select
Enter
Open
c
Compose
Shift+U
Mark unread
#
Move the open thread to Trash
/
Search
Esc
Clear selection
?
Show every shortcut

Put your domain on Nexmail this afternoon.

Free for up to 9 seats. Bring your own providers and pay them directly.