[Cybersecurity Essentials] Packet Tracer - Communicating in a Cyber World

Link Lab file: drive.google.c...
Background
In this activity, you will communicate across remote networks using common network services. The IP addressing, network configuration, and service configurations are already complete. You will use the client devices in the differing geographic regions to connect to both servers and other client devices.
Objectives
Part 1: Send Email between Users
Part 2: Upload and Download Files using FTP
Part 3: Remotely Access an Enterprise Router using Telnet
Part 4: Remotely Access an Enterprise Router using SSH

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I am getting error as, No outgoing server is found.Verify account information..