Your emails only work if they reach the inbox. This guide covers the full domain setup CapBloom does during onboarding, what you need to hand over to make it happen, and how to keep your sender reputation healthy after launch.

Note: CapBloom does this setup for you in Week 1. This page exists so you know what is in your account, what we needed from you and why, and how to troubleshoot if something breaks later. If you are stuck on a step, do not fight it. Send it through the Support form and it is off your plate.

The One Thing We Need From You

Domain access. That is the whole gate.

Nothing else in your email build can go live until your sending domain is authenticated, and we cannot authenticate it without access to your DNS. Pick one of these:

1. Give us login access to your domain registrar or DNS host (GoDaddy, Cloudflare, Namecheap, Squarespace, Wix, whoever manages your domain). Fastest path. We add the records, verify, and you never touch it.
2. Add a user for us at your DNS host if it supports delegated access.
3. Do it yourself with the exact record values we send you. The registrar steps are below.

If you do not know who manages your DNS, tell us your domain name and we will find out for you.

Why This Matters

Gmail, Outlook, and Yahoo filter aggressively. If your sending domain is not properly authenticated, your emails land in spam or get blocked outright. Since 2024, Google and Yahoo require SPF, DKIM, and DMARC for anyone sending bulk email. This is not optional anymore.

For capital raisers this is the whole ballgame. If your Welcome Sequence goes to spam, your investors never see it. You are paying for a system that is not working.

What Gets Built

1. A dedicated sending subdomain

We do not send your marketing email from your main domain. We create a subdomain just for sending, something like:

mail.yourcompany.com

or