WordPress cuts plus signs in email addresses

[SGr33n]

Hi,
GMail has this cool function that if you add a plus sign to your email you can work with filters and get a variety of email aliases (ref. ​https://gmail.googleblog.com/2008/03/2-hidden-ways-to-get-more-from-your.html).
If you use it on WordPress it will cut the plus sign, making the account unreachable.

It would be useful if WordPress could handle this function, but at least it should cut everything after the plus sign, not only the sign itself.

Example: testemail@… is the original email address, testemail+wp@… is an alias, WordPress transforms this into testmailwp@… that is a completely different email address, unreachable from the real user.

So WordPress could not remove the plus sign or at least remove all the part after the sign.

Thanks :)

[pbiron]

I suspect you've got an active plugin that is stripping the +.

I just tested on clean (i.e., no plugins, twentyseventeen theme) single and multi-site 4.9.6 installs and test+wp@example.com was accepted by both.

[SGr33n]

Was happened while I was developing a plugin, happened via wp_create_user() function. I will test it again.

[SGr33n]

Ok, I tested it and I found what's wrong. The username, that was the same as the email address, was stripping the plus, the email is correct so everything is ok :)