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There's a free webservice you might use, I'm guessing it only checks formatting:
http://www.webservicex.net/ValidateEmail.asmx?WSDL
If you open web services in Dreamweaver and give it the above url, it generates
the cfinvoke code below, which you can drag into your code.
<cfinvoke
webservice="http://www.webservicex.net/ValidateEmail.asmx?WSDL";
method="isValidEmail"
returnvariable="isValidEmailRet">
<cfinvokeargument name="email" value="mymy@xxxxxxx"/>
</cfinvoke>
<!--- add code below to give Boolean, 'yes', only. If email is malformed it
gives an error. Use with a form and code to check for 'yes'--->
<cfoutput>
#variables.isValidEmailRet#
</cfoutput>
If the email passes the above test, usual way is to send an email to that
address to verify the user exists, ask if they sent the email, click return
link to do something eg add them to database, etc
Colm
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