Email guides for founders
running multiple businesses

The forwarding setup breaks, the unified inbox creates noise, and the wrong address keeps going out. Here's how to fix the structure rather than work around it.

How to never reply from the wrong address again — and why the From field is a design failure.

Register a cheap domain as a catch-all for noise. Your real inboxes stay clean, verification codes are always findable, and nothing ever bleeds across.

Thunderbird, Mailspring, K-9 — an honest look at what open source email actually gives you and where the current options fall short for founders.

How to configure IMAP, App Passwords, send-as aliases, and signatures across multiple Workspace organizations — and which tools actually make it work.

One inbox for every client means crossed wires and the wrong reply on the wrong thread. Here's how to keep client work cleanly separated without drowning in accounts.

Running an agency means speaking as a dozen brands all day. Here's how to keep every client account separate, send as the right brand, and stop client work from bleeding together.

Adding accounts, Send As permissions, signatures per tenant. How to configure Microsoft cleanly for several businesses, and what to add when it stops keeping them separate.

Turn a privacy promise into something you can verify. What self-hosting email actually means, what it protects, and how to run your own multi-account dashboard.

Missive is built for teams sharing one inbox. If you run several businesses solo, here's an honest look at where it fits, where it doesn't, and what to use instead.