Duplicate email entry

[amireshoon]

As we know email@… and e.mail@… is the same email, but in wordpress we act like they are different. So same person with the same email address can create multiple accounts(e.g email@…, e.mail@…, e.m.ail@…...)
In this patch I normalised email adresses and fixed this problem.

[jorbin]

@amireshoon Welcome to trac.

While it's true that some email providors (most notibly gmail) ignore dots in the name portion of an email address, It's not true for all email providers. ​For example, when using a period in a Microsoft (outlook 365) email, it is treated as a different account. An analays from ​slate and usernames found:

DOTS MATTER: Microsoft Outlook, Yahoo Mail, Apple iCloud

DOTS DON’T MATTER: Gmail, Facebook

DOTS STRICTLY PROHIBITED: Twitter

I, therefore, don't think we can ignore periods in email addresses and am closing this request. Feel free to comment even though it's closed, especially if you have different information that shows it is in fact safe for us to ignore periods and this decision can always be reconsidered.

[desrosj]

@jorbin beat me to it, but I had the same thoughts earlier when I first read this ticket.

I'd also add that there are some benefits to having emails recognized as unique when adding additional .s. For example, when creating test accounts.

If viewing emails with periods as unique is important for the site you are managing, a plugin is the best bet.