[xorcist]

If Spotify's networks are all down, what good would a functioning DNS do?

(And I know it's not that simple, but that's probably the basic reasoning behind it.)

[profmonocle]

> If Spotify's networks are all down, what good would a functioning DNS do?

Email would still work. You can't receive email if the sending server can't look up your MX records. Since spotify.com uses Google Apps, their email would survive a total network outage if they used third-party DNS.