Automatic Subdomain Discovery

Automatic Subdomain Discovery

TDMARC offers the Automatic Subdomain Discovery feature that analyzes the entire outbound email channel of your domain and automatically lists down all of its subdomains. You can then apply filters on specific subdomains to see the data specifically related to them. 


Step 1: Go to the TDMARC dashboard and click on ‘SubDomain Discovery.


Step 2: Select the domain you wish to see the Sub Domains for.




This will display all subdomains associated with the selected domain, along with their published DMARC and SPF records.

Also, TDMARC doesn’t charge anything extra, no matter how many subdomains are associated with your domain. 


If you have any questions or encounter any issues, please contact us at support@threatcop.com


    • Related Articles

    • Automatic Flattening

      Automatic flattening is a dynamic feature offered by TDMARC that helps you overcome the problems caused by the SPF limit of a maximum of 10 records. What is SPF? Sender Policy Framework (SPF) is an email authentication protocol that helps in ...
    • How Does DMARC Protect Your Subdomain?

      DMARC allows domain owners to control how authentication failures are handled for both organizational domains and their subdomains using policy tags. P tag The p tag specifies the DMARC policy to be applied to messages that fail DMARC authentication ...
    • Guide to MTA-STS (Mail Transfer Agent – Strict Transport Security

      What Is MTA-STS and Why Does It Matter? Mail Transfer Agent Strict Transport Security (MTA-STS) is an email security standard designed to ensure that emails are transmitted over secure, encrypted connections. In simpler terms, it forces email ...
    • How to Setup SPF for Mandrill?

      To ensure that Mandrill is authorized to send emails on behalf of your domain and to check the seamless email delivery you need to configure SPF for Mandrill. This article will guide you to an easier way of doing it without the need for technical ...
    • Multiple DMARC Records Issue

      A DMARC check begins by fetching all TXT records published at _dmarc.<domain> that start with v=DMARC1. In case you want to know how many DMARC records you can have on a single domain, the only correct answer is ‘ONE’. A domain must not have more ...