Configuring Outgoing email settings in SharePoint with Gmail SMTP

To setup outgoing email in Sharepoint with Gmail SMTP we need to follow below steps -

• Enable SMTP Server - First of all we need to enable SMTP by following below steps - 

1. Open Server Manager
2. Click 'Add roles & Features'

3. Click next on 'Before you Begin Page'

4. On 'Installation Type' select 'Role based or feature based installation' and click next.

5. On Server Selection Page click next

6. Click Next on 'Server Roles' page

7. On 'Features' page, Select SMTP Server

8. Click Next on Confirm page, Now SMTP will be installed on the server.

• Start Administrative Tools
• Click on 'Internet Information Services (IIS) 6.0 Manager'

• Below screen will be open - 

• Expand local computer
• Right click on 'SMTP virtual Server' and click on Properties.

• In Access Tab go to Relay Restrictions.
• In Relay Restrictions
• Check “All except the list below”
• Check “Allow all computers which successfully authenticate to relay…”

• Goto message tab and fill in as shown below

• Go to delivery tab, on Outbound Connections, fill in

• In delivery tab in outbound security

• In delivery tab, click on advance and provide the details

• Select basic authentication and in Username provide a Gmail account already configured for POP3. To enable POP3, follow Create and setup a Gmail account to use POP3.
• Now in SharePoint Central Admin we have to setup outgoing email settings with using local SMTP Server we just configured