> NSlookup is good if you only need to know the server. CFX_ValidEmail also > checks if the use exists. I use it to avoid duff mail addresses producing > spam triggers, it can save a user needing a registration confirmation email > - which can cause spam triggers themselves.
Unfortunately, there isn't really a reliable way to check if a user exists other than sending an email to that address and getting a response. Mail servers can be configured to blackhole messages sent to invalid addresses, for example. http://stackoverflow.com/questions/3024819/how-do-i-check-if-an-email-address-is-valid-without-sending-anything-to-it http://en.wikipedia.org/wiki/Callback_verification Dave Watts, CTO, Fig Leaf Software http://www.figleaf.com/ http://training.figleaf.com/ Fig Leaf Software is a Veteran-Owned Small Business (VOSB) on GSA Schedule, and provides the highest caliber vendor-authorized instruction at our training centers, online, or onsite. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:356912 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
