Creating extra connection for idle queue: 56024 with queue type: DnsConnectorDelivery and next hop domain:

Log Name:      Application
Source:        MSExchangeTransport
Date:          26/06/2018 09:00:42
Event ID:      8019
Task Category: RemoteDelivery
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      %COMPUTERNAME%.domain.suffix
Description:
Creating extra connection for idle queue: 56024 with queue type: DnsConnectorDelivery and next hop domain: ktjsd.top. Current number of connections is: 1
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="MSExchangeTransport" />
    <EventID Qualifiers="32772">8019</EventID>
    <Level>3</Level>
    <Task>7</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2018-06-26T08:00:42.000000000Z" />
    <EventRecordID>7925020</EventRecordID>
    <Channel>Application</Channel>
    <Computer>%COMPUTERNAME%.domain.suffix</Computer>
    <Security />
  </System>
  <EventData>
    <Data>56024</Data>
    <Data>DnsConnectorDelivery</Data>
    <Data>ktjsd.top</Data>
    <Data>1</Data>
  </EventData>
</Event>