Currently most validation of email addresses is done by the structure and content of the address the user added to a form. This is pretty standard stuff, but what I am looking for, is a script that does a full lookup on the adress to make sure it is a valid and active email address, with a valid domain.

I use DW CS3 and develop mainly in classic ASP, deployed on IIS 6 with a SQL server 2000 database. I do use a dedicated server, so I am able to provide access for specific COM pbjects, if they are required.

I currently have a database with some 6,000 addresses, but need to weed out all those that are obsolete, or inactive, or just plain non-existant.

Anyone that can help me with this, will be greatly appreciated.

Thanks
Hans

Hi Hans

Is this the type of thing you're looking for?

www.asp101.com/articles/hojjat/mxlookup/default.asp

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Thanks, I did find this and ran a few tests and it really checks only the host and not the actual user account. So any Yahoo address, for example, will be flaged as legitimate.

I really need something that will query the server to see if the user address we have exists and accepts mail.

There are some products on the web that will do this, but I would like to try and code it more tightly integrated with the submission fo the request to join out list and also to run it periodically to celan out old, obsolete addresse.

Thanks again

Hans