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How to evaluate if the email deal withexists

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To More hints if customer entered mailbox.does.not.exist @webdigiapps. com definitely exists undergo the adhering to in demand cue on windows/ terminal on mac computer. The orders you input are in environment-friendly as well as the hosting server action resides in blue. Feel free to refer to MAC & & COMPUTER screenshots in the direction of completion of this message.

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

COMMAND:

nslookup -q= mx webdigiapps.com

RESPONSE:
Non- reliable response:

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

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

Step 2 –- Currently we know the email hosting server deal withso permit our company hook up to it. You can easily link to some of the exchanger addresses in the action coming from Step 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 coming from: <

RESPONSE:

250 2.1.0 Ok

COMMAND:

rcpt to: <

RESPONSE:

550 5.1.1 : Recipient handle turned down: Customer unknown in digital pen names table

COMMAND:

quit

RESPONSE:

221 2.0.0 Bye

Screenshots –- MACINTOSH Terminal & & Microsoft Window

NOTES:

  1. the 550 action suggests that the email deal withis not legitimate and also you have actually caught an authentic but inappropriate email handle. This code could be on the hosting server and called AJAX when customer tabs away from the email field. The whole check is going to take less than 2 secs to operate and also you may make certain that the email is correct.
  2. If email existed the web server will certainly react witha 250 as opposed to 550
  3. There are actually particular web servers witha CATCH ALL OF email as well as this implies all email handle are actually approved as valid on their web servers (RARE however some hosting servers perform possess this setting).
  4. Please carry out not utilize this method to regularly to check email for accessibility of gmail/ yahoo/ msn accounts etc as this might create your Internet Protocol to be contributed to a blacklist.
  5. This is actually to nutritional supplement the basic email address javascript recognition.

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