we keep getting the same warming every day we all use iphones to receive our emails
IP-based AUTD has detected that the registry value for the maximum heartbeat interval is set to a value greater than the maximum allowable value of  seconds. As a result, we will proceed with the default maximum heartbeat interval of  seconds and the default minimum heartbeat interval value of  seconds. To avoid seeing this message in the future, please correct this registry value, or omit it entirely in order to use the default.
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I keep changing the Reg keys @ the moment the keys are set to
ExchangeVDir Reg_Sz /exchange-oma
Maxheartbeatinterval Regdword 0x00045000(282624)
Minheartbeatinteral Regdword 0x00000336(822)
Should I keep changing the reg key to the once in the brackets or should I delete the registry key? I'm i missing something on the exchange server can i check anything on the firewall?