[jyap]

There's got to be a bug because this was on the front page 6 days ago: http://news.ycombinator.com/item?id=4486108

Well the link in the previous post had a trailing slash.

[crisnoble]

So to sum up the comments on the previous submission:

1) Someone did make a fully compliant Regex https://github.com/larb/email_address_validator

2) Lots of people (including the author http://news.ycombinator.com/item?id=4486264) think that you should at least validate that the '@' is somewhere to avoid username / email mixups

3) If your regex fails for [e-mail] lots of people get pissed. I learned you can use that for inbox sorting since [e-mail] goes to [e-mail].

4) There are other schools of thought that promote validation and telling the user something is wrong like mailcheck.js (https://github.com/Kicksend/mailcheck), but these should not stop users from submitting forms.

Did I miss anything?

[ars]

Yes.

5) Do some basic validation. If it fails, ask the user: Are you sure this email address is correct? If they say yes, then allow it anyway.

This lets you catch all the typos, without annoying people with more complicated email addresses.

[pbreit]

That the solution proposed kills conversion and is unnecessary.

[tylermauthe]

Funny part is that this submission made it to the front page again... I guess this is a really popular topic?

[pdenya]

It's a really popular headline at least. The actual article i'm not impressed with but email regexes are a pain.