I had an old AMO account which I just tried to sign in with, but was told my password was too short and I’d need to reset it. I did this, but then when I logged in I was told I needed to activate my account by clicking the link in the email I’d been sent. I don’t think I ever received that email, but I was able to resend it and click the link which said my account was verified. Now when I log in I still get the “Activation email sent” message, even though I’ve activated my account. If I resend the activation email, I never receive it.
My account uses the same email address as my discourse account, profile is https://addons.mozilla.org/en-GB/firefox/user/thelem/