> I have received an inquiry but the user haven't inserted a valid email. Just inserted the first part without the "@gmail.com" or something similar... What to

> I have received an inquiry but the user haven't inserted a valid email. Just inserted the first part without the "@gmail.com" or something similar... What to do? Simple -- send a copy to all the domains that exist. You're bound to eventually find the sender, along with everyone who ever used the same logon name. Logon names are like given names, and domain names are like family names. If all you have is a given name -- John, say, or Harry -- what's your chances to locate a specific John or Harry among earth's seven billion inhabitants? Also, if the correspondent doesn't have the sense to submit a complete e-mail address, are you sure you want to have anything to do with him?