Error 0x80550007

Value: -2141913081 | 0x80550007 | 2153054215

What does it mean ?

EAS_E_ADMINS_HAVE_BLANK_PASSWORD  
EAS password policies cannot be evaluated as one or more admins have blank passwords.
Value: 7 | 0x0007 | 0b0000000000000111

Where does it come from ?

FACILITY_EAS  
Exchange Active Synchronization
Value: 85 | 0x055 | 0b01010101

Other Errors for FACILITY_EAS