When users register and log in to my wordpress site, it seems that users with the .nl (Netherlands) email address (being used as the username) somehow causes none of the plugins to trip.
I put some debugging around two of them on a particular page, and although the sidebar initiates and makes room for the plugins, the sidebar contents are empty (both visually and in the DOM).
I have tested other email extensions, .com, .net, .ca, .cz, .it, and .au and all of them work normally. But all of my email tests ending in .nl are causing this issue.
Any insight would be appreciated.
WordPress 3.2.1 (latest)
Is your login page customized? have you tried changing the theme?
There some good advice on the below page which you might find useful, if you haven’t already checked it yet.
http://codex.wordpress.org/Login_Trouble
The one i’m referring to in particular is on New Login File section inside the above link: http://codex.wordpress.org/Login_Trouble#New_Login_File
Also something that you might find helpful:
http://wordpress.org/support/topic/allowing-registration-with-the-email-as-username
P.S:- I’m starting to believe wordpress wasn’t meant to allow any user to register with such usernames by default ’email@domain.com’. What i’ve seen is people mostly use plugins to do this, and also as far i’ve researched about this topic – it is considered a bad idea to implement it.
WordPress Plugin: http://wordpress.org/extend/plugins/wp-email-login/