fixed issue with delete mail-backups when removing a email-user / email-domain

Florian Schaal

2015-01-16 55c012f85a6768b2e6a918de3a4f8bba6fd8cc6e

1
ALTER TABLE `shell_user` CHANGE `ssh_rsa` `ssh_rsa` TEXT CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL;