By using this site, you agree to our updated Privacy Policy and our Terms of Use. Manage your Cookies Settings.
457,759 Members | 1,227 Online
Bytes IT Community
+ Ask a Question
Need help? Post your question and get tips & solutions from a community of 457,759 IT Pros & Developers. It's quick & easy.

Verify E-mail address

P: n/a
Good afternoon, community!

How you help me? I need to know, how could I verify e-mail address? I don't
mean ( for example: te**@test.com it is valid or not) I wanna know is that
real world E-mail or not?

How could I do that?

Thank you in advance!

Jun 27 '08 #1
Share this Question
Share on Google+
7 Replies


P: n/a
"Nikolay Podkolzin" <Ni**************@discussions.microsoft.comwrote :
How you help me? I need to know, how could I verify e-mail address? I
don't mean ( for example: te**@test.com it is valid or not) I wanna
know is that real world E-mail or not?
Send them a message and tell them to go to a long secret link to prove
they received it.

Eq.
Jun 27 '08 #2

P: n/a
Hi, Paul!

Thanks for your reply. But I need to check it e-mail in "live e-mail
verification", without the long secret link...

Any Thoughts?

"Paul E Collins" wrote:
"Nikolay Podkolzin" <Ni**************@discussions.microsoft.comwrote :
How you help me? I need to know, how could I verify e-mail address? I
don't mean ( for example: te**@test.com it is valid or not) I wanna
know is that real world E-mail or not?

Send them a message and tell them to go to a long secret link to prove
they received it.

Eq.
Jun 27 '08 #3

P: n/a
>
Thanks for your reply. But I need to check it e-mail in "live e-mail
verification", without the long secret link...

Any Thoughts?
My thought is that it's not possible without some cooperation from the
adressee to respond to you
Jun 27 '08 #4

P: n/a

"Nikolay Podkolzin" <Ni**************@discussions.microsoft.comwrote in
message news:4F**********************************@microsof t.com...
Hi, Paul!

Thanks for your reply. But I need to check it e-mail in "live e-mail
verification", without the long secret link...
If that was possible, then it would be a great anti-spam method as most of
it comes from fake addresses.
In theory you could send a message to it and then see if you get an NDR
back, but it could be a bit complicated and there is of course the
inevitable delay.

If just the domain is fake then it would be easier as you would fail at the
DNS lookup stage...

Jun 27 '08 #5

P: n/a
http://centralops.net/co/

That site seems to be quite accurate.
Jun 27 '08 #6

P: n/a
Nikolay Podkolzin wrote:
Good afternoon, community!

How you help me? I need to know, how could I verify e-mail address? I don't
mean ( for example: te**@test.com it is valid or not) I wanna know is that
real world E-mail or not?

How could I do that?

Thank you in advance!
There are two types of email verifications:

1. verify that the email address is legal, in the sense that it follows
the syntax that email addresses follows
2. verify that the email address is live, in that email you send to it
will end up in someones inbox.

The first type can easily be done through regular expressions, and you
can find many such examples on http://www.regexlib.com

The other one, however, is harder. The only sure way to do this is to
send that someone an email, containing a link back to your site. The
link would contain something that would allow your site to figure out
which user the link was sent to. The user would then be required to
click on the link to verify that the email address was correct.

There is, fortunately, no other way of doing this. Due to recent years
spamfest, all methods of silently verifying that an email address exists
on a server and corresponds to someones inbox is typically disabled
these days.

--
Lasse Vågsæther Karlsen
mailto:la***@vkarlsen.no
http://presentationmode.blogspot.com/
PGP KeyID: 0xBCDEA2E3
Jun 27 '08 #7

P: n/a
Nikolay Podkolzin wrote:
Thanks for your reply. But I need to check it e-mail in "live e-mail
verification", without the long secret link...
Not possible.

Spammers would love to do so.

The SMTP protocol actually has a VRFY command to
do just that.

But it is turned off on most mail servers to make
life just a little bit more difficult for spammers.

Arme

Jun 27 '08 #8

This discussion thread is closed

Replies have been disabled for this discussion.