How to Verify an Email Address in 2023 Exclusive
How to Verify an Email Address in 2023 ? : How do you verify if a given email address is real or fake? The obvious solution is that you send a test mail to that email address and if your message doesn’t bounce, it is safe to assume* that the address is real.
PS:Some web domains may have configured a catch-all email address meaning that messages addressed to a non-existent mailbox will not be returned to the sender but in most cases, such email messages will bounce.
Ping an Email Address to Validate it!
When you send an email to someone, the message goes to an SMTP server which then looks for the MX (Mail Exchange) records of the email recipient’s domain.
For instance, when you send an email to [email protected]_, the mail server will try to find the MX records for the gmail.com domain. If the records exist, the next step would be to determine whether that email username (hello in our example) exists or not.
Using a similar logic, we can verify an email address from the computer without actually sending an email message. Here’s how:
Let say that we want to verify if the address [email protected] exists or not?
Verify an Email Address
Step 1. Enable telnet in Windows or use the PuTTy tool. If you are on a Mac, open the iTerm app.
Step 2. At the command prompt, type the nslookup command:
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How to Verify an Email Address in 2023
nslookup –type=mx gmail.com
This nslookup command will query name servers for that domain. Since we have specified the type as MX, our command will extract and list the MX records of the email domain. Replace gmail.com with the domain of the email address that you are trying to verify.
gmail.com MX preference=30, exchanger = alt3.gmail-smtp-in.l.google.com gmail.com MX preference=20, exchanger = alt2.gmail-smtp-in.l.google.com gmail.com MX preference=5, exchanger = gmail-smtp-in.l.google.com gmail.com MX preference=10, exchanger = alt1.gmail-smtp-in.l.google.com gmail.com MX preference=40, exchanger = alt4.gmail-smtp-in.l.google.com
Step 3. As you may have noticed in the nslookup output, it is not uncommon to have multiple MX records for a domain. Pick any one of the servers listed in the MX records, maybe the one with the lowest preference level number (in our example, gmail-smtp-in.l.google.com), and “pretend” to send an email message to that server from your computer.
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For that, go to the command prompt window and type the following commands in the listed sequence:
3a: Connect to the mail server:
telnet gmail-smtp-in.l.google.com 25
3b: Say hello to the other server
HELO
3c: Identify yourself with some fictitious email address
mail from:
3d: Type the recipient’s email address that you are trying to verify:
rcpt to:
The server response for ‘rcpt to’ command will give you an idea whether an email address is valid or not. You’ll get an “OK” if the address exists else a 550 error like:
- [email protected] – The email account that you tried to reach does not exist.
- [email protected] – The email account that you tried to reach is disabled.
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That’s it! If the address is valid, you may perform reverse email search to find the person behind the address.