Bug#685443: Kmail: Missing dependency "akonadi-backend-mysql"

[Ralf E-Mail <anonymous272912@gmail.com>]

Package: kmail
Version: 4:4.4.11.1+l10n-3
Severity: severe

Dear all,
I upgraded my system from squeeze to wheezy and ended up having akonadi-server and akonadi-backend-sqlite installed (both 1.7.2-1).
However when starting kmail, it complained about the missing akonadi server and it provided the information that mysql is missing, which indeed wasn't installed. I was unable to access my emails as the window which the complained could not be closed.
After installing "akonadi-backend-mysql" which pulled also mysql, everything started working again.
Please fix this issue for the wheezy release.

Thanks in advance,
Ralf