If you want to send fan emails to your audience through the platform, your domain needs a one-time setup so those emails come from you, look like you and land reliably. This is a quick job for whoever manages your DNS.
If you would like to send emails to your audience through the platform, so they come from you, look like you and land reliably, your domain needs to be configured first. That is done by adding the small records below to your DNS. This does not touch your website or your existing email, it only enables sending. It is a one-time setup on your side, and once the records are in place the domain can be verified and you are ready to send.
1Who does this
Whoever manages your domain or DNS: your web person, IT, or whoever has access to your domain registrar or DNS host. It takes a few minutes.
2Your sending domain
The records below are added to the domain your fan emails will send from (stowawayfestival.co.uk). The Name values are entered relative to that domain. Some providers automatically add your domain to the end (so "send" becomes "send.stowawayfestival.co.uk") which is normal and correct.