On Tue, 28 Apr 2009 10:40:31 -0500, "Jay Blanchard" <jblanchard@xxxxxxxxxx> wrote: > Our company wants to do e-mail verification and does not want to use the > requests / response method (clicking a link in the e-mail to verify the > address), which as we all know is the only way you can be truly sure. I > found this; > > http://verify-email.org/ > > Which seems to be the next best deal and it is written in PHP. Has > anyone used this? Is anyone doing something similar? How do you handle > errors? I know that some domains will not accept these requests. > > I think that this method would really work for us and cut down on the > bogus e-mail addresses we're receiving though. Thoughts? Just tested this with two of my mailservers and it is not reliable. One server does say that a mailbox/alias exists while the other doesn't do this to protect against address harvesting. However, you could use it in combination with other methods like sending a confirmation code with a link, a better captcha check like balancing rotated photos or recognizing objects, MX and SPF records check (if available) and match against public black/graylists. Define a score for each method, when the total score gets above a certain threshold you flag it as invalid. -- Hawx -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php