How to check misspelled email during user registration
- by Nulldevice
I use an email registration and confirmation in my project (yes, I know about OpenID. In my counry, a main email service lack it).
Sometimes users misspell their email addresses. I know about this due to "message could not be delivered" letters in a mailbox. A misspelled address is absolutely correct, because I check it with a regular expression - say, [email protected] intstead of [email protected]. And I do not want to duplicate a email field in a registration form (who likes it?).
Request processing routine cannot wait for email delivery - it could take an unpredictable time. So, my script will return to user a confirmation message "An email was sent". And the user will wait for it forever (of cause, not - he/she will turn to an alternative project with a more perfect registration system).
Does someone knows how it can be improved (in any programming language)?
