Email Checker
Verify an email address for free
Mailnjoy offers a free, no-registration email checker, allowing you to check the validity of an email address.
Enter an email address and accurately check if it is valid or whether it presents any risk to be used.
Why should you check your emails ?
Email addresses are user data that evolve considerably over time: every day, a large number of them are created, while others are abandoned or deleted. To preserve your reputation as an emailer and ensure that your mailings arrive more easily in the inbox (instead of the spam box), we strongly recommend that you check your emails before sending them. It’s easy with Mailnjoy’s free online email checker!
All you have to do is enter your email address in the form above, and Mailnjoy will connect to the remote mail server to check the various checkpoints that indicate whether your e-mail address can be used freely and without risk.
This will enable you to identify email addresses that have become invalid over time (bounces), those that are dangerous (spamtrap), those with syntax or typographical errors, or emails with little added or commercial value (generated by robots, autogenerated, etc.).
Thanks to this tool, you’ll be able to know whether the email you’re considering contacting is reliable even before you’ve actually written to it, thus avoiding the deliverability penalty incurred when generating a hard bounce. Taken together and over the long term, these actions will have a major impact on your reputation and therefore on the overall deliverability of your e-mails!
Why choose our email checker
Advantages of our email checker
As soon as you use email to keep in touch with your customers (through newsletters, promotional offers, order tracking, etc.), or to canvass new prospects, the question of the deliverability of your mailings becomes paramount. To be seen and read by your recipients, your emails need to arrive in the inbox (or, to a lesser extent, in the promotional box), because arriving in the spam box means very low open rate and therefore ineffective email campaigns.
The notion of the sender domain’s reputation is therefore crucial to the success of your email marketing campaigns, and this aspect is closely linked to having clean email databases that are regularly checked. Our email checker then acts in depth to identify email addresses that should be removed from your email lists (invalid/bounces, but also low value-added emails), allowing you to keep only addresses that are valid, and gradually improving your reputation and therefore your email deliverability.
Using our email checker means putting all the chances on your side to boost the performance of your email marketing campaigns.
Verification of complete email lists
Although very practical for testing a few email addresses one after the other, online email checker can quickly become tedious and complex when you have many email addresses in your contact list. Mailnjoy has developed a “bulk” tool specifically for this purpose, enabling you to carry out this task of checking entire email lists with the greatest of ease and in an automated fashion.
This tool is accessible after user registration, and will enable you to automate the verification of your emails in a very simple way: simply upload a list of emails, and we’ll check them one by one and give you the verification results in a centralized file. Simple and user-friendly, our automated list checking interface lets you check thousands of email addresses in just a few minutes, so you can prepare your email routing with complete peace of mind!
Unique classification quality and accuracy
Checking your e-mails is good, but having confidence in the results is even better!
The least you can do when checking your emails is to be confident in the reliability and accuracy of the results obtained, but many email checking solutions are in fact nothing more than white-label resellers of generic, low-quality solutions.
At Mailnoy we are first and foremost email deliverability experts, and we have developed our own email verification engine, for accuracy and reliability far superior to other email checker.
Each email verification gives precise classification results, allowing you to make informed use of the risk involved in using the verified email.
Our email verifier can also check the most complex emails or catchall / protected domains in the in-depth version of the tests, removing any remaining doubt. We believe that there’s no need to choose between accuracy and reliability : with our email checker, you always make the best choice!
A trusted player
At Mailnjoy the security and confidentiality of your data have been integrated right from the design stage. As a result, our tools are fully GDPR-compliant, hosted entirely in French data centers, on dedicated servers (outside the cloud) which are secured and encrypted.
We guarantee that no customer data is ever used for anything other than the requested validation, and that it is deleted immediately and never reused or sold to a third party.
Who uses the email checker ?
Anyone who works with email on a daily basis and is concerned that his or her mailings are well read will benefit from using the email checker.
So there’s a very wide range of people who are interested in and use our email checker on a daily basis:
Sales teams within companies, who often send newsletters or other emails to their customers to alert them to new products or current promotions. As internal customer bases evolve over time, the email checker is useful for updating data and thus maintaining a good ROI on daily email communications!
Marketing and advertising agencies, who act as relays for the creation and routing of emails for their various customers. As customers’ multiple e-mail databases are often poorly controlled upstream, mail testing is a vital element for the agency, guaranteeing that future mailings will run smoothly and without blocking all routed lists.
Freelancers, associations, SMEs and VSEs: for these customers, the email base has often been built up over the years, and has rarely been updated. Here again, email verification will help to put things back in order, so that mailings to customers can be properly read and generate the expected interaction.
Individuals, too, may want to check the emails they have to ensure that mailings to their friends, colleagues or acquaintances continue to be seen and read!
Whether you’re an individual, a professional, a marketing agency, or a company that works with email on a regular or irregular basis, our free, no-registration email verification tool is for you!
The email validation process
1 – Syntax check
Here we check whether the email to be verified conforms to the expected email standard: conformity of the username part, conformity of the domain and extension, and absence of unauthorized characters in the email.
2 – Domain verification
Not all Internet domains accept e-mail! To enable reception, you first need to check whether the domain actually exists (or whether it has since been deleted), and also whether specific fields called MX (mail exchange) are present in the DNS. The absence of this element blocks the reception of all emails sent to the domain, so it is a very important element to consider. The verification also looks at the domain’s age and other specific features, enabling us to judge the level of trust placed in the domain.
3 – Detection of receiving specificities
Some domains are configured in a specific mode and accept all emails sent to them without distinction: these are known as “catchall” or “accept all” domains, or “protected” domains.
Detecting them and classifying them into different levels makes it possible to weight the level of trust accorded to these emails, and to detect those most likely to be real users or, on the contrary, bots (with lower commercial value).
4 – Email address verification (SMTP step)
An essential step in email verification, this is where the SMTP server of the destination domain is queried directly to determine the status of the tested mailbox. Don’t worry, this step is completely transparent, and never sends any email (the persons concerned are never informed that their address has been checked). This is a tricky stage, as some servers return unsuitable SMTP codes, which explains why some low-cost/low-quality solutions sometimes give results that are the opposite of reality!
5 – More detailed sub-classification of valid emails
One of the special features of Mailnjoy’s analysis is its ability to classify verified emails in a very detailed way, and not simply to indicate whether they are valid or invalid. As far as valid emails are concerned, several tests are carried out at this stage to determine whether the email is trustworthy or not: whether it belongs to a so-called “disposable” domain (email with a very short lifespan), whether it contains abnormal keywords, or whether the inbox is full and can no longer receive any mail.
We’ll also be looking to determine the possible presence of spamtrap emails, which are damaging to the sender’s reputation. The various additional attributes tested here will be decisive in identifying the trust placed in the verified email address.
6 – Additional in-depth validation steps (only after user registration)
In the in-depth validation mode / bypass_catchall, email verification goes even further, certifying the validity of catchall/protected email addresses, as well as providing additional information on the verified email address, such as affinities with social networks or e-commerce platforms. The real must of email verification!
Frequently asked questions
Benefit from exclusive advantages for your deliverability by creating your Mailnjoy account: