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How An Email Verification Service Works


Email verification has gotten lots of attention in the past few years. As email is becoming an increasingly prominent marketing channel, organizations need to ensure they use accurate email lists. So, they turn to an email verification service to clean up bad signups and maintain regular email hygiene.

But what exactly does an email verifier do? We’ll discuss this below and outline the importance of keeping a clean list as an email marketer.

Syntax Check.

An email verification system checks whether an email address is correctly spelled and has a proper structure. It verifies that there are no spaces, commas, restricted characters, and the domain extensions are correct. As a user, you’ll be notified if by mistake you have incorrectly spelled the email address and prompted with a suggestion to correct it. Otherwise, you may miss major updates or it might be sent to someone else, which would result in leakage of user’s data.

MX Records Checking.

After the syntax check, this function verifies if the domain name with the stated email address actually exists and functions properly. It’s an extra-step that ensures you are dealing with a valid contact, so you can send your emails to a real inbox.

Mailbox Validation.

This step ensures that the email address is actually the correct one and is capable to receive messages. That means that at the receiving end, there is a real human being who will get and open your emails.

These are the three simple and major steps which are beneficial to both, users and website owners to keep their data safe and restricted.

Email verification helps remove other risky email addresses.

For marketers, misspelled and fake email addresses are not the only concern. There are other types of risky email addresses that can end up on a mailing list and spoil it. For example:

  • Spam traps: they don’t belong to real humans and their only purpose is to lure in and block spammers.
  • Abuse emails: these are known email complainers who have a history of marking emails as spam.
  • Catch-all emails: their mission is to receive all email sent to a certain domain, even when the ID is incorrect.
  • Temporary emails: they autodestruct after a short period of time and are useless in email marketing

All of these addresses may bounce and ruin your sender reputation. That will cause more of your emails to bounce or land in the spam folder, where people won’t see them.

Why email verification is important.

Email verification helps you stay free of fake and spam users and maintain good data quality. Also, it tells you who your inactive users are. An email verifier will remove dormant accounts or users who aren’t engaging with your emails. As a result, your open and click-through rates will increase, which will encourage more conversions.

Email verification also doesn’t allow people to create multiple accounts by using the same email address. It’s a very efficient filter on your website and helps you engage in genuine, transparent communication with your customers.

Choosing the right email verifier isn’t hard – there are plenty of options on the market and the cost is insignificant compared to the benefits you get.


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