Email Delivery Verification [100% Inbox Delivery Guaranteed]

 In Developer, Product

Domain verification is one of Email Best Practices to keep your inbox delivery rates high.

To start sending emails from Pepipost, one of the crucial steps is to get your domain verified, i.e, confirming that you own the domain and verifying that all the email addresses are hosted on that domain.

At Pepipost we are committed to keep the email ecosystem clean and reduce the number of emails landing in spam. To maintain credibility as an email provider and provide our customers with the best deliverability and ROI, we follow stringent measures for domain approval. The email sending domain verification process is a combination of programmatic and human checks, which helps us determine if the domain is going to send genuine and relevant emails.

Our delivery team reviews and approves a domain based on multiple factors:

  • Domain ownership
  • Website content
  • Nature of business.
  • List building practices
  • Type of transactional or triggered messages that are being sent
  • Whether emails are apt to your business
  • Whether the business location matches the location where your account is created and many more.

This whole process of authenticating a domain usually takes less than 2 hours.

Once approved and you add your TXT & SPF records, you can start sending emails.

Domain not approved, now what?

If you feel that your website ticks off all the conditions above, please do reach out to our support team for a review.

Sometimes the approval process could be delayed. In such cases, we give our best efforts to understand use cases for each domain, and we just need a little more information about how your website and business are set up.

We will contact you over the email you used to signup with a set of questions that we need clarity on.

Things to remember while choosing a domain:

This is the most crucial part when you start off your email activity, be it transactional or promotional. Remember that you do not change the domain name frequently and ensure that it makes a lasting impression on your end users.

Here I list a few general guidelines to choose a domain:

  • A different name for domain & sub-domain: A completely different domain than your business domain, or a sub-domain of your business domain. Ex: is a completely different domain and is a subdomain of your business domain.
  • A different name for Transactional and Promotional sub-domains: In this case, for transactional and for the promo.
I assume that your mailing domain is separate from your business domain. 'But make sure that they have similar names and you redirect mailing to business domain.
The end-user should feel the connectivity between the domains.
Suggested: Also ensure your domain isn't in any existing blacklist database to improve your inboxing rate. Here's a free tool to check your blacklist status.


As an email campaign manager, you must be using different tools to get your campaign right. To ensure these perfectly curated campaigns reach the inbox, you also need to follow the email best practices of domain verification.

Also, to grow their business, people send different types of emails. One must be aware of all of those.

I hope this article was useful. If you have any queries on domain verification, please reach out to us on

In the essence of emailing, choosing the right SMTP port is also imperative.

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