Tried to log into ESO today. Got the "not authorized" message even though this is the only machine I use. Checked my e-mail for the access code: nothing.
Went to the account page. Got the "new device or browser" message even though this is the only machine and browser I use. Checked my e-mail for the access code: nothing.
Went to the support page. Can't file a support request without logging in. Can't log in if the Access Code e-mail system isn't working.
And, before you ask, it's not a spam filter -- I have my e-mail set to show all messages, including spam.