Get assured your mailing list contains only real emails addresses, get rid of bots and inactive users




Checkmyemailfast - Turns your cold mails - to hot leads.


Checkmyemailfast - Validate emails through social networks.


Checkmyemailfast - Reduces bounce rate - to hot leads.


We are a team that validates emails and phones using social networks for the past 3 years. Previously, we did it manually and it took from 3 weeks to a year, but at the moment it takes from us only 15 minutes to check 1 000 000 email addresses.

Our service will be useful to those who are working every day to increase conversion in email mailings and want to decrease bounce rate. We will also be useful to those who want to know who is behind that email or phone in order to save their time and money.


$ 10/mo
1,000 emails to validate included
$0.005/1 mail overage charge

$ 30/mo
5,000 emails to validate included
$0.004/1 mail overage charge

$ 100/mo
0,000 emails to validate included
$0.003/1 mail overage charge

EPIC 100,000+ emails to validate included
LEGENDARY 1,000,000,000+ emails to validate included + telephones

Email Checker

How often have you been in a situation when an e-mail that you sent to a friend, relative or a business partner, does not reach them? Sometimes, you get a response from the destination server saying something like ‘Oops, there’s been a mistake’ or ‘there is no such recipient.’ It irritates and annoys – especially as you realize that you’ve wasted your time for writing a letter hoping for a response. In the case with business – it means the lost gain and your time, which you might have spent on something more efficient. Wouldn’t it be nice to know how to check if the email is valid upfront? And that’s where e-mail checkers come at the fore.

Definition of an email address checker

There is the vastness of e-mail checkers online that will help you know whether the email address you are holding is correct or not. They have a differing technical implementation (which we will unearth to your attention below) and show different results. But the main aim they all are working for is to tell you whether this or that e-mail: _ really exists, _ is alive or not (it means that can it receive and send e-mails, not being just some dummy) _ Mail Exchange protocol (MX) records exist (if there are no MX data records, it means that the address can’t receive emailing) _ is built on what protocol (IPv4 or IPv6) and other technical information. If you want to use the service of verification of an email, then, probably, a wise decision would be using them all – to get more accurate results. In such a delicate issue, one can’t be sure about the correctness of results using only one. Why? Because we’ve tried the abovementioned email testers to check email online, for different email addresses on differing servers, just to get the opposite results. For instance, one of them says that ‘’ server’s addresses are all bad, while another tells they are actually quite good. The other returns the response that the checked ‘’ addresses are good, while the fourth checker doesn’t think so. The fifth, on the contrary, says that both and Gmail servers’ addresses are good, while the sixth got stuck on the very first attempt of making the check.

Why one wants to test email

You want to know the correctness of the address not only for personal reasons. There are the following situations when you must to:

  1. You are working in a marketing company that sends manual or batched emails to recipients during advert campaigns from time to time
  2. You have to send an irregular occasional batch of emails informing about your own new product/service, not as it is the case with marketing companies that work for making promo of someone else’s product, as a rule
  3. You have many business partners as you’re working in B2B or B2C areas and you make mailing to them on regular occasions like congrats with their birthdays or anniversaries or just to remind about self. Whatever the reason why you need to send e-mails is, it is good to know in most cases where you are sending your letters. Sometimes, it is vital to know in order to dramatically cut down your expenses for an ad campaign. Some pieces of research tell that around 80% of e-mail addresses are not valid or there is no person behind to read your correspondence. You don’t want to waste your money and time, as well as efforts, to send something to someone when you might have done a simple and hassle-free confirming email addresses procedure beforehand.

What are the benefits of using an email validation tool?

  1. Lower bounce rate. Though it is hard to have reliable figures in every business segment, more than half of marketers tell that their marketing campaigns would have been more efficient if they had a verified email database.
  2. Keeping your database up-to-date. Though some recipients do not change their email address for years and even decades, on the other pole, there are people that tend to change their ‘main’ e-mail every month or even to use ‘temporarily’ living email boxes. The latter ones are similar to ‘one-day’ online notes that disappear in 24 hours after being created or deleted immediately after being read not leaving anything to eternity as if they had never existed. Checking emails at times will help you keep up the relevance of your database avoid sending emails into the void.
  3. Obtaining more details about the email address (in the case if you need more ‘wise’ technical data added to your marketing report).
  4. In the end – saving time, efforts, and money of everyone who contributes to the process of e-mailing in your company.

How an email examiner works technically

There is a process of how the e-mail checkers usually work:

  1. The DNS service is applied to ping the email server in order to find out if it is alive in the first place.
  2. When there is reach, manual connection to it occurs.
  3. Then a sequence of technical commands is sent to the server and then received back, with the information about the protocol, MX, the existence of the specified email and so on.
  4. Syntax check: the fullness of the address is checked, like, for instance, does it have ‘@’ sign in it.
  5. If the server returns any information at all – it means, that if there is no response or it responses the same to all requests, the obtained information is unreliable unless there is other strong evidence of the existence of the checked email.
  6. Based on the results of that exchange, the e-mail checker forms the user report indicating the results. Additional information is often checked along the way, which bulkiness may depend on a specific checker. For instance, additional logic can be as follows: _ Is the address dummy or not. For instance, a regular ‘normal’ address would look like ‘[email protected]’, while the dummy one might look as ‘[email protected]’. The second one will likely to be marked as the unreliable or bad. _ Is there a good or bad domain name – in the case with ‘[email protected],’ it is easily seen that ‘’ is a fraudster domain name. You never want to correspond with them unless you’re a fraudster yourself. The same, the database of a checker can include many such ‘bad names’ which will not generate extra to your business when you will send them a letter.

Frequently Asked Questions

1. Is there an API for developers?

Some sites provide such option, some don’t. You have to read the FAQ section of each specific site to find out this information. Some sites don’t have API now (and only plan to), while others have it.

2. Is there a batch check?

Most Internet sites that verify email addresses are free to use (but they may be limited to a number of free checks in a given period of time). However, some email verification services provide a number of paid options, amongst which can be a batch check, while the others do not have a batch action at all. site, for instance, proposes a paid batch action. There may be a possibility that some site will block all batches on its site but will offer a separate OS Windows-working application to download to make checks. Sure, if you run a campaign with thousands of checks as a marketer, you definitely need a batch check, as the manual procedure may cost you more than the end benefit of such.

3. What are IPv4 and IPv6?

IPv4 is an ‘old-Internet’ domain addresses, which may look like ‘’ and are 32-bit-based. IPv6 is a ‘new-Internet’ approach to domain addresses given the increased number of domains globally on our planet and looks something like ‘3ffe:1223:4593:3:299:f8ff:fe93:68ef’, which is a 128-bit-based thing that should provide a solution to a problem of finite online domain addresses.

4. Is an owner of a verified address notified about the email verification?

No, all email verifying is run in the technical background, so no mail or other notice about the check is made to him or her.

5. Is information about the email validation stored anywhere?

It depends on the site. Some don’t store it, preferring to make alive checks by communicating with the domain’s server live and respecting your privacy. Some, on the contrary, create their own database that may be sold to someone later. In this case, one can’t be sure about the safety of the verified online address and whether it will not enter spam databases. To avoid this, we recommend you to read carefully the terms of use of each and every site before doing a check.

6. Is ‘verified’ email 100% workable?

There is no such guarantee. Statistically, however, correspondence is delivered to more than 95% of all ‘good’ emails. Vice versa, if it the address is marked as ‘bad’, ‘risky’ or anything similar, we would advise you not to waste your resources sending emails to it.