SMTP Configuration

• What is SMTP? 

SMTP (Simple Mail Transfer Protocol) is used to send emails from one device to another. In Packet Tracer, we simulate email communication using a Mail Server and two PCs.

Devices You Need: 4 PCs

2 Switches

1 Router

1 Server (for email)

 Step 1: Connect Everything PC1 & PC2 → to Switch1

Server & PC3 & PC4 → to Switch2

Switch1 ↔ Router ↔ Switch2

Use copper straight-through for PC/Switch Use copper cross-over for Switch ↔ Router

Step 2: IP Addresses

Step 3: Basic Router Setup Go to Router → CLI:

 Step 4: Configure the Server Go to Config tab → Email

Turn ON SMTP and POP3

Add two users:

xyz@email.local (password: 123)

pqr@email.local (password: 123)

 Step 5: Setup Email on PCs On PC1 and PC2:

Go to Desktop → Email

Fill:

Email: xyz@mail.local / pqr@mail.local

SMTP & POP3: 192.168.2.2 (Server IP)

Username & Password

Step 6: Send & Receive On PC1, compose email to teddy@mail.local

On PC2, click Receive