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I do a lot of optin email. Here are some examples of bounced emails that people use to sign up: * somename@gmail.co * anothername@yhoo.com * myemail@hotmial.

I do a lot of optin email. Here are some examples of bounced emails that people use to sign up: * somename@gmail.co * anothername@yhoo.com * myemail@hotmial.com These are very common errors that occur nearly every day. A regex isn't going to help here. What does help, is a notification that asks people to verify what they typed –– if the email contains an obvious, common error, such as one listed above.

gizmodo59 10y ago
Asking to retype though being a simple solution IMHO is asking for a lot. Consider a user who uses mobile phone, even copy paste is annoying. Validating if the mail box exists and that it does not belong to a provider like mailinator and then sending a confirmation link to them works. While its not perfect, it does address lot of other concerns without sacrificing user experience.
- stouset 10y ago
  Also, asking to retype makes sense for a password where you can't visually verify that you typed what you expected. For an email address, it's pointless and frustrating. Send an email. If it bounces or doesn't get verified in a timely fashion, it was a mistake and delete the account.
  - namenotrequired 10y ago
    And the user never discovers their mistake.
    - nilved 10y ago
      They'll discover they don't get a validation email.
    - Retra 10y ago
      That's just what happens when you give bad contact information.
- detaro 10y ago
  I don't think having users always retype the address is what the parent post suggested, but to look for common errors and if one is found prompt for verification.
- jeremy_wiebe 10y ago
  And as soon as you invoke copy-paste the second confirmation field loses all value anyways.
- gregmac 10y ago
  Why do you care if the address is for mailinator?
dbarlett 10y ago
mailcheck [1] is great for this, especially when supplemented with your users' most popular email domains. [1] https://github.com/mailcheck/mailcheck https://github.com/mailcheck/mailcheck
eyelidlessness 10y ago
But I want a hot mial!
bubble_boi 10y ago
I'm planning a follow-up post with all sorts of real validation just like what you mention here. Can't take too long to build an array of 'probably typos'. I wish had access to logs of failed emails.

gizmodo59 10y ago

Asking to retype though being a simple solution IMHO is asking for a lot. Consider a user who uses mobile phone, even copy paste is annoying. Validating if the mail box exists and that it does not belong to a provider like mailinator and then sending a confirmation link to them works. While its not perfect, it does address lot of other concerns without sacrificing user experience.

stouset 10y ago
Also, asking to retype makes sense for a password where you can't visually verify that you typed what you expected. For an email address, it's pointless and frustrating. Send an email. If it bounces or doesn't get verified in a timely fashion, it was a mistake and delete the account.
- namenotrequired 10y ago
  And the user never discovers their mistake.
  - nilved 10y ago
    They'll discover they don't get a validation email.
  - Retra 10y ago
    That's just what happens when you give bad contact information.
detaro 10y ago
I don't think having users always retype the address is what the parent post suggested, but to look for common errors and if one is found prompt for verification.
jeremy_wiebe 10y ago
And as soon as you invoke copy-paste the second confirmation field loses all value anyways.
gregmac 10y ago
Why do you care if the address is for mailinator?

dbarlett 10y ago

mailcheck [1] is great for this, especially when supplemented with your users' most popular email domains. [1] https://github.com/mailcheck/mailcheck https://github.com/mailcheck/mailcheck

eyelidlessness 10y ago

But I want a hot mial!

bubble_boi 10y ago

I'm planning a follow-up post with all sorts of real validation just like what you mention here. Can't take too long to build an array of 'probably typos'. I wish had access to logs of failed emails.