Understanding Email Verification Result

When we talk about email verification, we, as marketers, are primarily interested in verification results. Whichever email verifier free we use, we will have a detailed report indicating the status of each verified contact. Below we will consider the related reasons that provide an answer to the question of why a particular address received a certain status. We will also discuss the main test results.

Related reasons

Understanding the related causes helps not only to understand the essence of the results, but also to create an idea of the origin of certain addresses. For example, opposite one of the email addresses  there is the status “invalid_email” indicating a syntax error. Thanks to this, you can not only rehabilitate this contact, but also improve the registration form so that users do not make mistakes when filling it out.

In identifying validity of email addresses, it is important to understand all the related reasons. Below we have provided explanations for the most common ones:

• invalid email – there are syntax errors;
• invalid domain – this domain does not exist;
• rejected email – there is no such account on the receiving server;
• accepted email – The SMTP server has accepted email binding;
• no connect – there is no connection to SMTP server
• time-out – the session on the remote SMTP server has ended;
• unavailable SMTP – SMTP server is not available;
• unexpected error – an unexpected error occurred on the SMTP server;
• no MX record – domain MX record does not exist;
• temporarily blocked – this address is temporarily in the blacklist;
• exceeded storage – the memory allocated for the account has been exceeded.

Naturally, there are other related reasons. But the ones described above are the most popular.

Verification result — «valid»

Perhaps this status is the most desirable, because you really want all the email addresses on the list to be correct and active. The status “valid” in most cases means that you can send emails to such contacts without fear. But there is one nuance. If  there is a note “accept all” or “one–time” next to such a valid address, you should refrain from sending. We recommend clearing the customer base of such records.

Verification result— «unknown»

The status “unknown email” means that this address is able to receive letters, but the settings of its domain do not provide an opportunity to determine the true essence of such an account. That’s why such an email address is considered potentially dangerous. In other cases, the “unknown” status appears due to the low speed of the mail server, which is extremely slow in processing requests. In such situation, we recommend that you recheck after 7–10 minutes.

Verification result — «invalid»

An email address with the status “invalid” – does not exist, is not active, or there is a syntax error in its name. The email verification service will offer to remove such accounts from the list or move them to a separate storage.

Conclusions

We sincerely hope that the results of your checks will always be accurate and prompt. The most important thing is that they suit you. To do this, we recommend using the modern bulk email checker Proofy, which can process a list of 100,000 email addresses in 45 minutes and even faster. The feature of the service is the ability to integrate the verification API into the corporate system or the client’s website for even more accurate and ultra–fast validation of accounts from your list. And the best part is the low price, which starts at $ 0.006 per check, as well as many nice “goodies“: free 500 checks at registration, profitable discounts, interesting special offers, the ability to work with a promotional code and much more. Try it! You will not regret it!