Your SaaS Has a Landing Page, a Logo, and a Stripe Account. Does It Have Email?

Here's a pattern almost every indie builder repeats: you register a domain, ship a landing page, wire up Stripe, maybe even get your first few users - and somewhere in that list, email quietly falls through the cracks. Not because it doesn't matter, but because it feels like the kind of thing you can "deal with later."

The problem is, "later" usually arrives at the worst possible moment: a real customer replies to your welcome email and it bounces. A user hits "forgot password" and nothing shows up. Someone emails [email protected] and it goes straight into a void, because you never actually finished setting it up - you just pointed the MX records at a free forwarder six months ago and moved on.

We built Mektup because this exact problem kept showing up, over and over, for exactly the kind of builder who has no patience for it.

Why the existing options are a bad fit

It's not that builders don't know they need email. It's that the options in front of them are built for a different problem:

• A full Google Workspace / Microsoft 365 subscription is built for teams with shared calendars, org-wide admin, and a dozen employees. If you're a solo founder who just needs hello@ and support@ working, you're paying for - and configuring - a lot of infrastructure you'll never touch.
• Free forwarding services solve receiving, but not sending. The moment you try to reply as your own domain, you're back to configuring SMTP yourself, or your replies show up from a personal Gmail address.
• Transactional-email APIs (Resend, SendGrid, Postmark and the like) are great for sending - but most of them can't receive at all. Someone replies to your "no-reply" address and it just disappears.

Mektup exists because none of these actually solve the whole problem, and a solo builder shouldn't need to stitch three different tools together just to get a working inbox.

What Mektup actually does

Mektup is self-hosted, multi-domain email hosting, built specifically for people who own a domain and need real email working on it in minutes, not a weekend.

You register a domain, and Mektup hands you the exact DNS records - MX, SPF, DKIM, DMARC - ready to paste into whatever registrar or DNS provider you're already using. No hand-written DKIM keys, no guessing at record formats. Verify once they propagate, and you're live.

Every mailbox is a real inbox, not a forward. Create [email protected] and you get genuine IMAP/SMTP credentials - use them in any real mail client, or use Mektup's own built-in webmail dashboard (search, threading, folders, attachments, contact forms, vacation auto-replies, all included). You can reply as your domain, which is the one thing forwarding-only services never actually give you.

Sending is programmatic from day one. A REST API and SMTP credentials mean your app's transactional email - signup confirmations, password resets, receipts - just works, without a personal Gmail app password taped together with a cron job.

Delivery status you can actually trust. Because Mektup runs its own mail server instead of relaying through someone else's, delivery status is read straight from the real server logs - sent, deferred, or bounced, with the actual rejection reason when something fails. No tracking pixel, no black box.

Built for how SaaS actually gets shipped in 2026. If you're building with Lovable, Bolt, Cursor, Replit, or Claude Code, your AI coding agent can scaffold your entire backend in an afternoon - except email, because setting up a mail server needs DNS access and a registrar account, not more generated code. Mektup ships a full MCP server and CLI alongside the API, so your agent can register the domain, create the mailbox, and send the first real email itself, inside the same session it's already building your app in.

The free tier is actually usable, not a trial. 1 domain, 3,000 emails a month with no daily cap, 3GB of storage, no credit card required. Most competitors throttle bursts even under their monthly ceiling - Mektup doesn't.

Getting started takes about ten minutes

1. Sign up and add your domain - Mektup generates the DNS records automatically.
2. Paste them into your registrar, wait for propagation, hit verify.
3. Create your first mailbox - hello@ or support@, whichever you actually need.
4. Send yourself a test email, then reply from your personal inbox to confirm both directions work.

That's the whole setup. No Postfix configuration, no half-day detour into DNS documentation, no separate tool for sending versus receiving.

If you've been putting off email for your SaaS because every option felt like overkill or underkill, Mektup is the middle that was missing - real email, built for one person moving fast, not a team that needs an admin console.