Edit: appears to be fixed.
Lemmy.zip may be up and down all day - emails have stopped working (no discernible reason why) and so registrations are closed, but you should be able to login without having a registered email to stop current users from being locked out. I'll update when I know further information.
Edit: for anyone that is interested, I can't telnet port 587 on the mail sending platform. I can do it fine for other smtp providers so I assume it is a current provider issue. I'm looking at switching providers to see if this helps.
Edit 2: I've switched email providers and it appears we're back up and running again - email resets appear to work. I'll switch email verifcation back on and allow new users.
If anyone is having any issues, please email me at [email protected] if you can't access your account, and I will look into it.