Exchange 2010 Time server error 5502

Do we need to change the InternalSMTPServers parameters somewhere?

Log Name:      Application
Source:        MSExchangeTransport
Date:          01/11/2018 15:08:33
Event ID:      5502
Task Category: Logging
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      EX2010.domain.suffix
Description:
MSExchangeTransport Component Latency for external servers has detected negative latency exceeding 2 seconds.  All servers specified in the InternalSmtpServers parameter should use Network Time Protocol to ensure clock synchronization.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="MSExchangeTransport" />
    <EventID Qualifiers="32772">5502</EventID>
    <Level>3</Level>
    <Task>5</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2018-11-01T15:08:33.000000000Z" />
    <EventRecordID>1775048</EventRecordID>
    <Channel>Application</Channel>
    <Computer>EX2010.domain.suffix</Computer>
    <Security />
  </System>
  <EventData>
  </EventData>
</Event>