Emails that contain malicious attachments are a common source of malware attacks. Once a user opens them, cybercriminals can gain access to their computers and expose their personal information or steal data.

If you want to email legitimacy checker your company from falling victim to such attacks, it’s important to verify every email address before sending it to your subscribers. There are a number of methods to do this, but many of them are very technical and/or take a lot of time to use.

The best way to check if an email is valid is to use an email verification service that works within seconds. Such services validate an email address by checking its format, domain name server (DNS), MX records and SMTP to make sure the email account exists and can receive emails.

In addition, a good email validation tool should also look for syntax errors and spoofing attempts. Attackers often try to spoof email addresses by switching out or adding characters, for example replacing an m with a rn or a lower case l with a 1 or.com with a.co. Hovering over the email address can reveal these slight-of-hand changes.

“Optimizing Email Lists: Removing Bounced Addresses

Using an email validity checker like DeBounce will quickly clean your lists of undeliverable addresses and remove role accounts to help you cut down on bounces and improve email deliverability. The service is used by leading companies, such as Uber and Dell, to verify their mailing lists. New users get 100 free credits to start with, and you can buy more if you need to verify a large list of email addresses.