@claustn: Thanks, maybe i wasn't clear enough: I only have the option to edit the alarm sound for every e-mail, regardless of what account it was sent to. That way, if i check for mails from my "normal" account, there would be an alarm sound every time there's new mail. So while i could use some siren sound for e-mail alarms, this would probably not be a good idea e.g. at work.

Ideally, there would be a specific sound for that e-mail account overriding everything and playing at full volume.

But the setup i have now is already a lot better than what i had before thanks to everyone. I really appreciate it. Checking your email every 5 minutes on a 20km run sucked.