foundermail.mx

Hosted email · Unlimited inboxes · Your own domain

Everyone's mail. One place. Sorted by customer.

hello@, billing@, support@ and everyone's personal address — real mailboxes on your domain, with SMTP and IMAP on every single one. Then a dashboard that shows you the person, not the mailbox.

Unlimited inboxes and unlimited domains on every plan, including the free one.

We launched this year, so there is no wall of customer logos to show you. Here is what we will tell you instead.

Inboxes
Unlimited, forever, on every plan
Protocols
IMAP and SMTP from the free tier up
Lock-in
Your domain, your MX, your exit

Why this doesn't exist yet

Mailbox hosts have the plumbing and no interface. Shared inboxes have the interface and host no mail.

Doing both takes two vendors and two bills today. FounderMail is one.

The difference

Four messages, three inboxes, one customer.

Dana wrote to billing@ about an invoice, hello@ about her renewal and support@ about SSO. Every other mail host shows you three unrelated threads in three different mailboxes. We show you Dana.

DK Dana Kessler acme.co 4 messages · 3 inboxes
Re: invoice 2291 shows the old VAT rate — can you resend? billing@
Renewal question — we're adding four seats in October hello@
Re: SSO rollout — worked first try, thank you support@
MR Miguel Rey rey.studio 2 messages
Trial ends Friday — what happens to my mailboxes? hello@
DNS setup — MX propagated, DKIM still pending support@
TL Tomas Lindqvist new contact 1 message
Migrating 11 mailboxes off Rackspace — is the importer self-serve? hello@

Real protocols

Mailboxes you can leave with.

Every address gets its own SMTP and IMAP credentials, so your mail opens in Apple Mail, Outlook, Thunderbird or anything else that speaks the protocol. No proprietary client, no export ticket. The door you came in by stays open.

hello@yourdomain.com billing@yourdomain.com *@yourdomain.com
Any IMAP client imap.foundermail.mx : 993 TLS
Authenticated submission smtp.foundermail.mx : 587 TLS
Inbound MX 10 mx1 · 20 mx2 Live

Two things with dates on them

Your current setup has an expiry date. Ours doesn't.

March 2026 · already happened

Rackspace went from $2.99 to $10 a mailbox.

Resellers are reporting increases between 235% and 706%. Our importer connects to your Rackspace account over IMAP and copies every folder across, structure intact — you keep your addresses and your mail.

Run the Rackspace importer →

January 2027 · four months away

Gmail stops sending as your domain.

New "Send mail as" configurations for third-party addresses are already blocked, and existing ones stop working in January. If you receive with Cloudflare and send through Gmail, that stack has a deadline on it.

What breaks, and when →

Pricing

Creating email is free. Using it is not.

Billed per account, not per project · USD · Annual = 10 months

Plan Free $0 / forever Pro $12 / mo · $120 / yr Scale $39 / mo · $390 / yr
Domains Unlimited Unlimited Unlimited
Inboxes, aliases, catch-all Unlimited Unlimited Unlimited
Received / month 500 15,000 100,000
Sent / month 100 5,000 40,000
Storage, pooled 1 GB 25 GB 100 GB
Retention 12 months Unlimited Unlimited
IMAP / SMTP Included Included Included
Team members 1 3 Unlimited
Send API, relay, webhooks Included Included
Customer view Basic Full Full + link API
Outbound to strangers On review On review On review

Overage, not a wall: $2 per extra 1,000 sends $3/mo per extra 25 GB Dormant projects consume nothing and cost nothing

Setup

Three records. Then it's yours.

Typical propagation 5–30 min · verified automatically

Type Name Value Prio
MX @ mx1.foundermail.mx 10
MX @ mx2.foundermail.mx 20
TXT @ v=spf1 include:foundermail.mx ~all
CNAME fm1._domainkey fm1.dkim.foundermail.mx
$ dig +short MX yourdomain.com
10 mx1.foundermail.mx.
20 mx2.foundermail.mx.

SPF    pass
DKIM   pass  selector fm1
DMARC  none  ← we'll nag you about this one

Or skip all of it

If your domain is at GoDaddy, Namecheap, Cloudflare, Squarespace or any of 80 other registrars, we write these records for you through Domain Connect. One authorisation, no copy-and-paste. Nobody else in mailbox hosting does this.

Why we ask for DMARC

SPF and DKIM prove a message is really from you. DMARC tells the receiving server what to do when something fails that test. Without it, anyone can spoof your domain and Gmail will shrug. We set it up with you rather than leaving a link.

Reply-only until we've met

Every new domain can answer anyone who has written to you, immediately and with no approval. To write to people who haven't, ask for outbound access — on any plan, including free. Paying doesn't buy the right to send cold mail, because a spammer would happily pay $12.

Straight answers

The questions you were going to email us.

Can I keep my address?

Yes — that's the whole point. You bring the domain, we run the mail. Your address doesn't change, which is also why ours never can.

What happens if I leave?

You point your MX somewhere else and pull everything over IMAP, the same way you got it here. No export queue, no retention hostage.

Really unlimited inboxes?

Really. A dormant inbox costs us a database row. We meter the three things that do cost money — mail received, mail sent, bytes stored — and nothing else.

Do you read my mail?

No, and we don't train anything on it. Message bodies sit encrypted in blob storage and spam scoring runs on our own hardware, not a third party's.

What if spam filtering breaks?

You still get your mail. The filter fails open by design — a filter outage must never become a mail outage, and we would rather deliver junk than silently drop something real.

Who is behind this?

One founder, running this same mail stack in production since 2024. The infrastructure isn't new; the dashboard on top of it is.

Point your MX at us and see.

Free tier, no card, unlimited inboxes. If it isn't better than what you have, the records take two minutes to undo.