Hi

I  am using Exchange  2010 sp3;

I have one mailbox (like sales department)  and  Ten device connected  this account  with outlook .But want connect one more device this account , outlook  connection   fails  you have to connect to exchange (.ost)
how can do

Thank you in advance for your help

RunspaceId                                : 63448235-4347-4e51-846d-4e6f1a9cb7ce
IsDefault                                 : True
AnonymousMaxConcurrency                   : 1
AnonymousPercentTimeInAD                  :
AnonymousPercentTimeInCAS                 :
AnonymousPercentTimeInMailboxRPC          :
EASMaxConcurrency                         : 20
EASPercentTimeInAD                        :
EASPercentTimeInCAS                       :
EASPercentTimeInMailboxRPC                :
EASMaxDevices                             : 50
EASMaxDeviceDeletesPerMonth               :
EWSMaxConcurrency                         : 10
EWSPercentTimeInAD                        : 50
EWSPercentTimeInCAS                       : 90
EWSPercentTimeInMailboxRPC                : 60
EWSMaxSubscriptions                       : 5000
EWSFastSearchTimeoutInSeconds             : 60
EWSFindCountLimit                         : 1000
IMAPMaxConcurrency                        :
IMAPPercentTimeInAD                       :
IMAPPercentTimeInCAS                      :
IMAPPercentTimeInMailboxRPC               :
OWAMaxConcurrency                         : 5
OWAPercentTimeInAD                        : 30
OWAPercentTimeInCAS                       : 150
OWAPercentTimeInMailboxRPC                : 150
POPMaxConcurrency                         : 20
POPPercentTimeInAD                        :
POPPercentTimeInCAS                       :
POPPercentTimeInMailboxRPC                :
PowerShellMaxConcurrency                  : 18
PowerShellMaxTenantConcurrency            :
PowerShellMaxCmdlets                      :
PowerShellMaxCmdletsTimePeriod            :
ExchangeMaxCmdlets                        :
PowerShellMaxCmdletQueueDepth             :
PowerShellMaxDestructiveCmdlets           :
PowerShellMaxDestructiveCmdletsTimePeriod :
RCAMaxConcurrency                         : 20
RCAPercentTimeInAD                        : 5
RCAPercentTimeInCAS                       : 205
RCAPercentTimeInMailboxRPC                : 200
CPAMaxConcurrency                         : 20
CPAPercentTimeInCAS                       : 205
CPAPercentTimeInMailboxRPC                : 200
MessageRateLimit                          :
RecipientRateLimit                        :
ForwardeeLimit                            :
CPUStartPercent                          

Hi ,

Please check the below mentioned thread .

https://social.technet.microsoft.com/Forums/office/en-US/b303e2a8-d650-47e1-9a1f-13f7d06d3e0b/single-mailbox-opened-in-multipul-outlook-clients?forum=exchangesvrgeneral