T emailRegex is defined to validate the format of an email address. It checks for a non-empty string before the element , a non-empty string for the domain name, and a non-empty string for the top-level domain. T validateEmail takes an email address as input and uses the emailRegex function to check if it matches a valid format. It returns true if the email is valid, and false otherwise. In the usage example, an array of email addresses is defined. The code goes through each email address in the array and calls the validateEmail function with the email address. It then logs a message to the console indicating whether the email address is valid or not based on the result of the validateEmail function .
This code focuses only on validating the email address format using a regular expression pattern. It does not include any additional checks for domain existence or email deliverability. JavaScript validation does have its limitations, however: It cannot verify if the email address actually exists or is active. It lacks advanced controls, such as checking that the email account's inbox is full or checking for disposable email addresses. For more reliable email verification, we recommend using a specialized email verification service, which we will cover in the next option. Option 3: Use an email verification tool Email verification tools are an easy way to validate emails in bulk.
Let’s see how to do it with Bouncer: 1 Create a Bouncer account and receive 100 free verification credits. Bouncer Signs Up for the Only Email Verifier 2 Log in to your dashboard. Bouncer Dashboard displays valid canada b2b leads emails 3 Navigate to “Check List” and click “Add New List”. 4 You will be prompted to copy and paste your email addresses or upload a file. check emails and IP addresses 5 Click on “Copy & Paste”. Copy your emails and put them in the field: Bulk Email Verifier 6 After a few seconds you will get your results: results with invalid addresses 7 You can download the results and remove invalid email addresses from your list. missing data And that's it! You now have a clean email list. Tips for Verifying Contact Lists We can't leave you without some best practices when it comes to verifying contact lists.
Check regularly Maintaining a clean and correct contact list requires regular checking. Over time, email lists deteriorate; according to studies, this phenomenon The rate is 2.1% per month . Annually, it represents 22.5%. Contacts can therefore become invalid very quickly, increasing the bounce rate and reducing deliverability. You can find and eliminate these invalid addresses by regularly checking your list. This way, your emails will continue to reach real people. Schedule when you will check in on your contacts – monthly or quarterly. Being proactive about updating your list can make your email campaign more effective and help you maintain a good sender reputation .
Monitor spam traps Protecting your sender reputation requires constant monitoring for spam traps. Spam traps are email addresses that are set up to catch spammers. Hitting just one will significantly reduce inbox placement rates . Detect and remove these traps from your list using verification tools like Bouncer. You’re less likely to have your emails classified as spam when Bouncer can recognize and flag these suspicious addresses. Your emails will be better delivered and will not end up in spam folders if you regularly check for spam traps.