Mail problems when customize pack settings

[pioup]

Hi,

I found a defect in pack settings override :
I got a pack with 1 email account limit with 1 email already created. I override it to 5 mail accounts, I create 2 more accounts but those 2 are not working (atmail tells me Server responded: -ERR Login failed ) & telnet login works fine.
The first account still works perfectly.
What's the problem ? Is there a way to force new settings considering ?

Thanks