Articles on: Deliverability & Spam

Why you should connect your own domain

When you install Wiz, your emails start out sending from a shared Wiz domain. That's fine as a starting point - it means you can send straight away - but connecting your own domain is the setup we strongly recommend, and it's required before you can send campaigns.

Shared domain vs. your own domain

Shared domain (the default). Wiz assigns you an address on a shared sending domain so everything works out of the box. Good for getting started; not ideal long term.

Your own domain (recommended). Sending from your own domain means:

Better deliverability - more of your emails land in the inbox instead of spam.
A sender reputation you own - your sending history builds under your domain, not a shared one influenced by other senders.
A consistent, trustworthy from-address - customers see your brand, not a generic domain.

Where to set it up

Go to Brand & Settings → Sender info. The Sender section shows your current sending setup and a Setup Domain option to connect your own.

The Sender info page with the Setup Domain option

For the step-by-step, see Connecting your domain.

Campaigns require a connected domain. You can build and preview campaigns on the shared domain, but you'll be asked to connect your own domain before you can send them. Setting this up early saves you from hitting a wall at send time.

Updated on: 31/07/2026

Was this article helpful?

Thank you!