[maumar]

Hopeing to be not OT.
I have the same issue:
Admin Web Gui reports:

Accounts limit:	50 ( 44 accounts have been used )

I have no archive account.
zmprov reports:

zmprov -l gaa |wc -l
55

but...
of these 55 accounts, they have:

zmprov gas|wc -l
2
zmprov -l gaa |grep galsync|wc -l
4
zmprov -l gaa |grep wiki|wc -l   
2
zmprov -l gaa |grep spam|wc -l
2
zmprov -l gaa |grep ham|wc -l
2
zmprov -l gaa |grep virus-quarantine|wc -l
1

they have 2 servers, and of 55 accounts,
2 are wiki
2 are spam
2 are ham
1 is virus-quarantine
4 are galsync

55 - 11 = 44 accounts

During upgrade, instead:

Checking for available license file...
Current Users=52 Licensed Users=50

as utils/utilfunc.sh counts 55 minus 3....