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bilis_money

Determining Invalid e-mail address? is this possible?

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Hi, i'm wondering if it is possible to determine an e-mail address if it is
currently existing or not?

And also how to distinguish if the e-mail is using spam blocking system.
If this possible then what PHP e-mail functions related to this topic?



Thank you very much in advance.

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I don't think you will be able to do this without sending an email to the address and checking for bouncebacks.

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The best way to do it would probably be to send the email some sort of activation. If you're using it with a user script, you could just have a field called activation with a random string in it and give them a link to click so it activates them.

Other than that, I don't know.

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I think you can do it without sending an email, but with communicating with the mail server, check this tutorial in zend.com

http://www.zend.com/zend/spotlight/ev12apr.php

The problem will be if someone entered a valid email, but someones else. So sending an email and require validation will be the best option.

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