3 ms·

That's what I thought, but on my site, I'd say about 5% of people make a typo on their email address. Now I am probably going to join the "confirm email" club.

• thwarted 17y ago
  But does typing the email address twice, on the same form a mere 20 pixels from where you previously typed in full view of the previous entry, actually bring out corrections? If you mistype it the same way twice, you may not notice that you mistyped it, as both fields will look the same. For password fields, where the input is hidden/obscured, the double entry makes some sense (ignoring the UI issues/possibilities outlined in the OP), but with email addresses, it seems less so. I'd be interesting in hearing stats after you make a change. Also, are the typos you've seen more often in the LHS or the RHS (of the @) in the email address? The RHS is relatively easy to spot check, by doing an MX and A DNS lookup to see if the domain exists -- you'll check actual delivery later. I've found this to be more robust than regular expressions that attempt to "validate" email addresses (see HN postings from earlier today) and assume a fixed size on the RHS, and are often overly aggressive in trying to detect "illegal" characters on the LHS, like +, which is not actually an illegal character.