how to use "connection logging enabled" as to viewing SIMILAR emails received from same source

Hello tlvcvbnsw,

Welcome to Apple Support Communities. 

We understand you want to use connection logging enabled. We are happy to help.

These steps may help. Please try the steps as listed here: Connect your Mac to shared computers and servers - Apple Support

Connect to a computer or server by browsing

1. On your Mac, click the Finder icon  in the Dock to open a Finder window, then click Network in the Locations section of the sidebar.
2. If no items appear in the Locations section of the sidebar, hold the pointer over the word Locations, then click the arrow .
3. In the Finder window, double-click the computer you want to connect to, then click Connect As.
4. If you’re connecting to a Mac that has screen sharing turned on, and you have the appropriate privileges, you can also click Share Screen.
5. Select how you want to connect to the Mac:

• Guest: You can connect as a Guest user if the shared computer permits guest access.
• Registered User: Connect to the other Mac using a valid login name and password. If “Only these users” is selected on the other Mac, make sure the login name you’re using is on the list of allowed users.
• Using an Apple ID: Connect to the other Mac using an Apple ID. You must be set up in Users & Groups settings with this Apple ID, on both this Mac and the other Mac.

1. If necessary, enter your user name and password, then select volumes or shared folders on the server.
2. In some cases you need the network area or workgroup for the shared computer. If you don’t have this information, contact the computer’s owner or your network administrator.
3. Tip: To make it easier to connect to the computer in the future, select “Remember this password in my keychain” to add your user name and password for the computer to your Keychain.

Let us know if you have further questions.

Take care.