Newsletters people are glad to get.
Write it, approve exactly what goes out, and send it only to people who said yes. Your list stays yours.
100% free, open source alternative to Mailchimp and Klaviyo
MIT licensed
How a letter leaves Mango.
Five calm steps, and you are in charge of every one.
Collect
Readers join on your hosted signup page and confirm by email.
Write
Draft in the rich-text editor or in HTML mode, then preview it at desktop and phone widths.
Approve
An operator approves the exact saved letter, and that is the letter that goes.
Schedule
Pick the local date and time for each step, in your newsletter's time zone.
Deliver
Mango hands each letter to your mail provider and records what the provider confirms.
Every reader said yes.
Your list is built on consent, not assumptions.
A signup page that's ready
Share your hosted signup page; new readers confirm their address before they get a single letter.
Consent on record
Mango keeps when and how each reader agreed, and the exact wording they saw.
Imports keep their history
Bring your list as CSV. Opt-outs and suppressions are applied first and never undone by a later import.
Unsubscribe, honoured
Every letter carries a visible unsubscribe link, and an opt-out is recorded before the reader is told it worked.
Approve the exact letter.
What you approve is exactly what goes out.
Approval is recorded
Mango records who approved the letter and when, against the exact content they saw.
Locked once approved
After approval the letter can't be edited. To send something different, write it and approve it on its own.
Checks before approval
Mango blocks approval until the sender, the unsubscribe link, the links and the audience rules are right.
Send it when you mean to.
Choose the local time; Mango works out the exact moment.
Local time, real time zone
Each step is set in your newsletter's time zone, with the exact UTC moment shown beside it.
Every step in view
Campaign history shows each step's time, state and recipient outcomes.
Stop what can still stop
Cancel queued work while it is waiting. Mango never pretends to recall a letter already sent.
Know it arrived.
Reports show what your mail provider confirmed, never guesses.
Delivered means delivered
A letter counts as delivered only when the provider says so. Accepted is not delivered.
Bounces and complaints handled
A hard bounce or complaint suppresses that address before the next send.
Nothing invented
No forecasts or modelled numbers. An unconfirmed send stays unconfirmed.
Your list stays yours.
Nobody else holds your readers.
Your readers, your data
Your readers, letters and history stay in your own database.
Export any time
Download your audience with its consent history as CSV, ready to import again.
A team of equals
Every operator has the same powers, and approvals and cancellations record who made them.
Yours to change
MIT-licensed source you can customise with your own agents.
Write the first one today.
Set up Mango and send a newsletter people are glad to get.