How to check if the email address exists

Source Hyperlink

To helpful resources if user got in mailbox.does.not.exist @webdigiapps. com definitely exists look at the complying within demand trigger on home windows/ terminal on macintosh. The orders you type in reside in green as well as the web server feedback is in blue. Satisfy pertain to MACINTOSH & & COMPUTER screenshots in the direction of the end of this article.

Step 1 –- Locate email exchanger or even email hosting server of webdigiapps.com

COMMAND:

nslookup -q= mx webdigiapps.com

RESPONSE:
Non- reliable answer:

webdigiapps.com mail exchanger = 0 mx2.sub3.homie.mail.dreamhost.com.

webdigiapps.com email exchanger = 0 mx1.sub3.homie.mail.dreamhost.com.

Step 2 –- Now we understand the email hosting server address therefore allow our company link to it. You can link to among the exchanger handles in the action from Action 1.

COMMAND:

telnet mx2.sub3.homie.mail.dreamhost.com 25

RESPONSE:

Connected to mx2.sub3.homie.mail.dreamhost.com.

Escape character is actually – ^] ‘.

220 homiemail-mx7. g.dreamhost.com ESMTP

COMMAND:

helo hi

RESPONSE:

250 homiemail-mx8. g.dreamhost.com

COMMAND:

mail from: <

RESPONSE:

250 2.1.0 Ok

COMMAND:

rcpt to: <

RESPONSE:

550 5.1.1 : Recipient deal withturned down: User unknown in digital alias desk

COMMAND:

quit

RESPONSE:

221 2.0.0 Bye

Screenshots –- MACINTOSH Terminal & & Windows

NOTES:

  1. the 550 feedback signifies that the email address is certainly not valid as well as you have actually captured an authentic yet inappropriate email handle. This code could be on the server and gotten in touchwithAJAX when user buttons away from the email area. The whole entire check is going to take lower than 2 few seconds to operate and also you can easily be sure that the email is actually correct.
  2. If email existed the web server will react witha 250 rather than 550
  3. There are particular hosting servers witha CATCH ALL OF email as well as this means all email handle are actually allowed as authentic on their hosting servers (RARE yet some hosting servers do have this setting).
  4. Please do not utilize this technique to consistently to check email for availability of gmail/ yahoo/ msn accounts etc as this may create your Internet Protocol to become added to a blacklist.
  5. This is actually to nutritional supplement the common email deal withjavascript recognition.