By hand
In the admin
- Open Newsletters on the sidebar and find Sending domain.
- Type the part before the @ under From (newsletter when left blank), then the domain, and press Add.
- Copy the three records shown, two CNAME and one TXT, into your domain's DNS. Each has a Copy button.
- PixelGlass checks them for the next two days, and each record turns from Waiting to Verified. Press Check again after a change.
- Once all three verify, the section says Sending as your address, and every email to your readers comes from it.
An admin adds and removes the domain. Remove it, and email goes out from your pixelglass.me address again.