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check email

Thursday, January 23rd, 2020

How to evaluate if the email address exists

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To email checker if consumer entered mailbox.does.not.exist @webdigiapps. com actually exists experience the following in demand prompt on home windows/ terminal on mac computer. The demands you key in are in green as well as the server response remains in blue. Please describe MAC & & COMPUTER screenshots in the direction of completion of the article.

Step 1 –- Find mail exchanger or mail hosting server of webdigiapps.com

COMMAND:

nslookup -q= mx webdigiapps.com

RESPONSE:
Non- reliable solution:

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

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

Step 2 –- Currently we understand the email server deal withthus allow our team link to it. You can hook up to one of the exchanger handles in the feedback 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 address turned down: User unknown in online pen names table

COMMAND:

quit

RESPONSE:

221 2.0.0 Bye

Screenshots &ndash;- MACINTOSH Terminal &amp; & Windows

NOTES:

  1. the 550 reaction shows that the email handle is not valid as well as you have actually caught a legitimate however incorrect email address. This code can be on the server as well as gotten in touchwithAJAX when user tabs out of the email field. The whole entire check will take lower than 2 few seconds to operate and you may make certain that the email is actually correct.
  2. If email appeared the web server will answer witha 250 rather than 550
  3. There are specific hosting servers witha CATCH ALL email and this implies all email handle are actually taken as authentic on their web servers (RARE yet some hosting servers do possess this setup).
  4. Please do not utilize this method to continuously to check email for supply of gmail/ yahoo/ msn profiles etc as this might cause your IP to be included in a blacklist.
  5. This is actually to supplement the typical email deal withjavascript recognition.