I have found a big problem in your scalix 10 if you set password to expire the password expire to soon one. Then if your account for sac expires and you change it you can not log back into sac. It will not let me back in.
and the only way to fix this I found is to reinstall none of the fixes that i found here did not fix. I had to reinstall once and I might to do it again.
Please let me know about this. I have done this before and it happen again.