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> C# Method To Test If An Email Address Is Real/deliverable?    
post Apr 18 2014, 11:48 AM

Posts: 194
Joined: 5-September 05

Is there a way in VS .net c# to validate an email address that is real (deliverable)? I already know that the format is valid, I just want to do a test "send" without really sending anything, for the purpose of verifying that the email address is deliverable.
Thanks if someone knows how to do this in bulk.
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post Apr 18 2014, 01:01 PM

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Posts: 37,015
Joined: 20-June 02
From: Newcastle, WA

I can't speak directly to the C# context, but I "*THINK* the only way to absolutely test that an email address is deliverable is to ping it.
ome time ago, the company I worked for then needed to validate many thousands of email addresses for a client. We ended up hiring a company that specializes in email marketing to do that. They had two or three levels of validation, including their own proprietary database of several million "known" good email addresses. As I recall, they also were able to contact the mail host to check the mail domain. And the highest level was test email to the address. That, of course, reveals your intent.
Obelieve the company name was Anchor something, and they are in New York. If you'd like I'll do a little sleuthing in my own email archives for contact info.
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post Apr 18 2014, 02:41 PM

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Posts: 10,472
Joined: 7-December 09
From: St. Augustine, FL

That's my understanding as well.
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