Mailfly
Features

Everything a small business needs. Nothing it does not.

Start on the Free plan. Starter adds your own domain and a welcome email. Pro has every feature on this page, with MCP for Claude.

Connect

Power your emails with MCP and API

  • Pro: connect Claude by MCP, then ask it to write drafts, tag many people at once, build automations and forms, set up daily emails and read your results
  • More than 50 MCP tools, over every feature
  • Claude cannot send a campaign or switch on an automation: only you can
  • API keys on every plan: add contacts from your shop or CRM, make draft campaigns
  • Limits for each key, shown in Settings
  • Team members, and more than one business in one account
app.mailfly.ai/settings
Claude connected in Settings
Write

Emails that look good in every inbox

  • 17 designed templates to start from
  • Edit the words in the email itself; add pictures, buttons and offer boxes
  • Fonts, text sizes, colours and highlights, with your own colour first
  • Move, copy and delete blocks; numbered boxes count again by themselves
  • Type / for a menu, or write in Markdown
  • Preview text: the line people see next to the subject
  • A warning before an email gets so big that Gmail cuts it short
  • Personal touches: first name, company, website
  • Send a test to yourself and your team
app.mailfly.ai/campaigns/edit
The email designer: the toolbar with Font, Size and Colour, and the first line of the email in blue on a yellow highlight
Grow

Bring your list, then keep it growing

  • Import from CSV or straight from Klaviyo, Mailchimp, Resend, Brevo, Kit, HubSpot and beehiiv
  • Sign-up forms for any website or landing page tool, and a hosted sign-up page
  • GDPR consent boxes on every form: your words, your privacy policy, and extra boxes for each kind of email
  • Zapier, Make, n8n, Typeform, Tally, Webflow and Unbounce
  • Confirmed opt-in: new people click a link in an email before they join (you choose)
  • A contacts API for your shop or CRM
app.mailfly.ai/subscribers/import
The import page with two finished imports
Organise

Tags and bulk edits

  • Tag people by hand, in an import, from a form, through the API, or when they click a button in your email
  • Tick people, or choose everybody that matches a filter, then add or remove a tag in one go
  • Add many people to an automation at once
  • Send to any or all of some tags, and leave out others
  • A new tag can start an automation
  • People choose their own topics on their email settings page
app.mailfly.ai/subscribers
Subscribers with three people ticked and the bar that adds a tag to them
Daily deals

A daily deal email that sends itself

  • Pro: link a Google Sheet, a CSV file or a JSON feed, with one row for each product and its date
  • Choose the time: every 15 minutes from 05:00 to 21:45 (UK)
  • The day's products go out in a "Deal of the day" layout
  • Not ready yet? It tries again every 5 minutes for 2 hours
  • Same products as the last email? It skips the day and tells you
  • Check and preview, and send yourself a test first
  • Or email your new blog posts by RSS, on the days you choose
Inbox · Today's deal from Bloom Bakery
A Deal of the day email made from a feed: a sourdough loaf at £3.50
Automate

Automations with If/else paths

  • Starter: a welcome email for each new subscriber, from everybody or from one form
  • Pro: build the steps you want: emails, waits from 1 minute to 90 days, If/else paths, add or remove a tag
  • Pro: start when a person joins, gets a tag or clicks a link
  • Ready flows: after a purchase, and welcome then a nudge
  • Each person goes through once
  • It switches itself off if bounces or complaints get too high
app.mailfly.ai/automations/edit
The automation builder: email, wait 2 days, then If/else on "opened": Yes adds a tag, No sends a second email
Send

Sending that protects your name

  • Send now, or schedule for later: both ask first, with the subject and the number of people
  • Send in steps: your most engaged people first, then more when you are ready
  • Send from our domain, or (from Starter) add your own with the DNS records shown step by step
  • Pro: A/B test two subjects, then resend to people who did not open
  • A new domain warms up: 500 emails a day in week 1 (ask us to change it), then 1,000 and 2,000, then no limit
  • One-click unsubscribe in Gmail and Yahoo
  • A campaign pauses itself above 4% bounces or 0.1% spam complaints
app.mailfly.ai/campaigns/edit
Send a test, Send now, Schedule, and send to only the first most engaged people
Keep

A list that stays healthy

  • Unsubscribes, bounces and complaints stop at once, and stay stopped after an import
  • Send only to people who opened or clicked in the last 90, 180 or 365 days
  • People who ignore your emails get one last-chance email; with no answer, they rest. Nobody is deleted
  • An email to you when something needs you: a paused campaign, a spam complaint, a flood of sign-ups
app.mailfly.ai/settings
Settings with list cleanup and confirmed opt-in switched on
Learn

See what works

  • Overview: your list over 60 days, where new people came from, emails each hour, and the last 30 days against the 30 days before
  • Engagement stars (1 to 5) for each subscriber
  • Each campaign: opens, clicks, each link, and who did what, with a CSV download
  • A chart of opens and clicks after each send, and bars from sent to clicked
  • Emails still waiting? The report says why (for example, the warm-up limit) and when the next ones can go
  • Results for each mailbox provider: Gmail, Outlook, Yahoo, iCloud, BT, Sky and more
  • Each contact: every email they got and what they did with it
  • Page views on your website from each email, with no cookies
app.mailfly.ai/campaigns/report
A campaign report with 13.4% clicks
Share

Your past emails on the web

  • A public page of the campaigns you choose, with a sign-up form
  • On your own domain if you want
  • Search engines can find each email
  • No tracking and no unsubscribe link on the web copy
app.mailfly.ai/archive/bloom-bakery
A public page of past emails

Start free today.

The Free plan needs no card. Move to Starter or Pro when you need more.

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