Self-serve onboarding

Create business email after proving the domain is yours.

KasaPost starts with DNS ownership proof, then provisions the company domain, owner mailbox, and first setup checklist.

What happens first

The first mailbox is created after DNS verification.

Enter the company domain, choose the owner mailbox, publish the one-time TXT record, and KasaPost provisions the domain when ownership is confirmed. Migration help is still available for higher-risk moves.

Start self-serve setup Read setup docs

Account details

Choose the company domain, owner mailbox, plan, and initial sending profile.

DNS ownership

Publish a one-time TXT record so KasaPost can verify domain control before provisioning.

Mailbox setup

KasaPost creates the domain, owner mailbox, trial subscription, and DNS checklist.

Warm-up and cutover

Start with low-risk conversations, monitor placement, and move production mail when signals are healthy.