The Cereal Blog

Email guides for founders
running multiple businesses

Practical setup guides, workflow improvements, and honest takes on the tools that do and don't work.

Getting started
How to manage email across multiple businesses (without losing your mind)
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.
8 min read
Email identity
The serial founder's guide to email identity
How to never reply from the wrong address again — and why the From field is a design failure.
7 min read
Setup guide
What is a spam domain and why every founder should have one
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.
6 min read
Tools
Open source email clients for multiple accounts: what exists and what doesn't
Thunderbird, Mailspring, K-9 — an honest look at what open source email actually gives you and where the current options fall short for founders.
7 min read
Google Workspace
The best email setup for Google Workspace across multiple companies
How to configure IMAP, App Passwords, send-as aliases, and signatures across multiple Workspace organizations — and which tools actually make it work.
8 min read