To find your SMTP server on Windows 10, you usually need to check the email account settings inside the email application you’re using (such as Outlook or the Windows Mail app) or refer to your email provider’s official SMTP details. Windows 10 itself does not assign an SMTP server; instead, the SMTP server is provided by your email service (like Gmail, Outlook, Yahoo, or a custom domain host) and configured within your email client.

Now, let’s go deeper and describe everything step by step.
 

What Is an SMTP Server?

SMTP stands for Simple Mail Transfer Protocol. It is the technology responsible for sending emails from your device to the recipient’s mail server. While IMAP or POP3 handles receiving emails, SMTP is only for sending.

On Windows 10, SMTP settings are used by:

• Microsoft Outlook
• Windows 10 Mail app
• Thunderbird
• Third-party email clients
• Software that sends email notifications

Without the correct SMTP server details, your emails will fail to send.
 

Important Thing to Know About Windows 10 and SMTP

Windows 10 does not have a built-in SMTP server. Instead:

• Your email provider supplies the SMTP server
• Windows 10 simply stores and uses those details in your email app

So when people ask, “How do I find my SMTP server on Windows 10?”, what they really mean is:

How do I find the SMTP server settings for my email account on a Windows 10 computer?

How Do I Find My SMTP Server on Windows 10? Step-by-Step Guide

Method 1: Find SMTP Server Using the Windows 10 Mail App

If you use the default Mail app in Windows 10, follow these steps:

Step-1: Open the Mail App

• Click the Start menu
• Search for Mail
• Open the app

Step-2: Go to Account Settings

• Click the gear icon (setting) at the bottom left
• Select Manage accounts
• Click on your email account

Step-3: Open Advanced Settings

• Click Change mailbox sync settings
• Scroll down and click Advanced mailbox settings

Step-4: View SMTP Server Details

Here you will see:

• SMTP server address
• Port number
• Security type (SSL/TLS)
• Authentication requirements

This is your SMTP configuration currently used on Windows 10.

Method 2: Find SMTP Server in Microsoft Outlook (Windows 10)

If you’re using Microsoft Outlook, this is one of the most reliable ways.

Step-1: Open Outlook

• Launch Outlook on your Windows 10 PC

Step-2: Open Account Settings

• Click File
• Select Account Settings
• Click Account Settings again from the dropdown

Step-3: Select Your Email Account

• Choose your email address
• Click Change

Step-4: View SMTP Server

On the main screen, you’ll see:

• Outgoing mail server (SMTP)

For more details:

• Click More Settings
• Open the Advanced tab
• View SMTP port and encryption

Method 3: Check SMTP Server via Email Provider Website

If you don’t have access to your email app settings, you can find SMTP details directly from your provider.

Common SMTP Servers

Gmail

• SMTP server: smtp.gmail.com
• Port: 587 (TLS) or 465 (SSL)

Outlook / Hotmail

• SMTP server: smtp.office365.com
• Port: 587

Yahoo Mail

• SMTP server: smtp.mail.yahoo.com
• Port: 465 or 587

Custom Domain Email

• • SMTP server often looks like:
    • mail.yourdomain.com
    • smtp.yourdomain.com

Always confirm from your hosting provider if you’re using business email.

Read More: How Do I Find My SMTP Server on Windows 10?