Can I authorise my whole domain name to send through your SMTP service?

Yes - if you or your organisation have your own domain name you can authorise it as a wildcard email address rather than individual addresses. (i.e. *

There are no extra costs for this but you do have to prove your ownership of the domain name using one of the following methods:

  • Receive an email to or
  • Add a DNS TXT record to the DNS records for the domain name
  • Add a webpage to your website using a unique code

To add a whole domain name to your AuthSMTP account click here.