Mailtester

MailTester is a free online tool that helps you test and validate your email addresses. It's a simple and effective way to check if an email address is valid, active, and deliverable.

Here are some of the features of MailTester:

1. Email Address Validation: MailTester checks if an email address is valid and follows the standard format of a valid email address (local part@domain).
2. Domain Check: It checks if the domain part of the email address exists and is valid.
3. MX Record Check: MailTester checks if the domain has a valid MX record, which is necessary for email delivery.
4. SMTP Test: It sends a test email to the email address and checks if it's delivered successfully.
5. Blacklist Check: MailTester checks if the email address is listed on any blacklists, such as Spamhaus or SORBS.

To use MailTester, simply enter the email address you want to test in the input field and click the "Test" button. The tool will then perform the checks and provide you with a report on the validity and deliverability of the email address.

MailTester is a useful tool for:

1. Email Marketing: Verify the validity and deliverability of your email list before sending out a campaign.
2. Customer Support: Check if a customer's email address is valid and deliverable before responding to their inquiry.
3. Recruitment: Verify the email addresses of job applicants before contacting them.
4. Research: Use MailTester to validate email addresses for research purposes.

Overall, MailTester is a simple and effective tool for testing and validating email addresses.