Email validation is an area where many websites fall short as we found in our study on Website UA Readiness (nearing publication)

The technologies behind these websites generally use a Regular Expression as their first line of defence against rubbish data.   The issue is that most of these RegExs are overly restrictive.

As an appendix to the Website review, we looked at some of the technologies behind the websites to see if there were common denominators for good and bad experiences.

One RegEx has stood out as being simple and correct.   I’d like the UASG to consider recommending this in our documentation.   Toward that end, this thread is for discussion.