Board Thread:General Discussion/@comment-27329026-20160717144459/@comment-1757994-20160717192756

Wikia could be trying to implement full-qualified domain names. Does the email not get sent?

A DNS name that does not end in a dot is a relative name, so 'blahblahblah@somedomain.com' tries to resolve as both 'blahblahblah@somedomain.com.wikia.com' and 'blahblahblah@somedomain.com' and picks whichever one works. 'blahblahblah@somedomain.com.' should try only 'blahblahblah@somedomain.com'.

However, whether Wikia's infrastructure can handle fully-qualified names is another matter.