When you need to set up a custom domain for personal messages or return portals on Shipmondo, you need to create a series of DNS records.
These DNS records must be created because they tell the internet that your domain belongs to your Shipmondo account, so that your customers can visit your return portal via your own domain, and so that your emails are delivered correctly and without ending up in spam.
We have created a series of guides here as well as links to some of the most popular DNS providers: