The code below to send an Amazon SES email works fine. However, I need the code to communicate with a local EC2 database, so I need to add this Lambda function to my VPC and Subnets – At this point, the code below stops working and timeouts.

How can I fix this?

import json
import boto3

def send_email_ses(email):
    client = boto3.client('ses', region_name='eu-west-1')
    
    try:
        response = client.send_email(
            Destination={
                'ToAddresses': [email]
            },
            Message={
                'Body': {
                    'Text': {
                        'Charset': 'UTF-8',
                        'Data': 'Hello world',
                    }
                },
                'Subject': {
                    'Charset': 'UTF-8',
                    'Data': 'Welcome! Your API Key',
                },
            },
            Source='[email protected]'
        )
        return response['MessageId']
    except Exception as e:
        print(f"An error occurred: {str(e)}")
        return None

def lambda_handler(event, context):
    email = "[email protected]"
    message_id = send_email_ses(email)
    
    if message_id:
        body = f"Email Sent Successfully. MessageId is: {message_id}"
        status_code = 200
    else:
        body = "Failed to send email."
        status_code = 500

    return {
        'statusCode': status_code,
        'body': json.dumps(body)
    }`

Error Message:
Response { "errorMessage": "2024-06-26T05:12:37.998Z 34457ba1-910f-4f54-9ced-234dac1c0950 Task timed out after 5.01 seconds" }

If I remove the VPC, it works again.