Automated Email Using AWS Lambda

The process of setting up an automated email using AWS Lambda, CloudWatch, SES (Simple Email Service), and IAM (Identity and Access Management) roles involves creating a Lambda function that sends an email using SES and then scheduling it to run at specific intervals using CloudWatch Events.

Steps to set up

Step 1 :

Verify the Sender and Receiver Email using SES :-

• Login to AWS Management Console, navigate to SES service.
• Open SES and click on Email Address.
• Enter the from address and to address and verify it.
• Amazon SES sends the verification mail to the corresponding Mail Id's.

Step 2 :

Set Up IAM Roles :-

IAM (Identity and Access Management) Roles holds the necessary permission to perform the task.

• In the Amazon Management Console navigate to IAM.
• Navigate to Roles and click on Create Role.
• Attach the two policies as the trusted entities and proceed.
  • CloudWatchFullAccess
  • AmazonSESFullAccess
• Assign name of the Role (AutomateSendEmailRole) and click Create Role.

Step 3 :

Create Lambda function :-

AWS Lambda is a Serverless function that instantly run the code without the need of the server.

• In Amazon Management Console navigate to Amazon Lambda.
• Click on Create Function and name the function (automate_send_email).
• Select the runtime as NodeJS.
• Change the default execution role as Use an Existing Role and select the IAM Role created earlier (AutomateSendEmailRole).
• Click on Create Function.
• In the Function Code write the necessary code that uses asw-sdk and ses to send Email.
• Save the function by click on Deploy.

Step 4 :

Set Up CloudWatch Event Rule :-

CloudWatch is used to trigger the Lambda function at the specific interval.

• In Amazon Management Console navigate to CloudWatch.
• Click on Rules and choose Event Source as Schedule.
• Define the schedule by cron expression. Cron Expression : Minute, Hours, Day of Month, Month, Day of Week, Year.
• Add the Target to the Rule by selecting the Lambda function created earlier (automate_send_email).
• Configure the Rule details and create rule.

Step 5 :

Monitoring the Event :-

• Goto the Lambda function and click on monitoring.
• Click on view logs in CloudWatch to view the events triggered and check the Email for the result.

🔗 Links