# What

#### **SENDUNE makes it very easy to use AWS SES. It integrates with your AWS account and abstracts away all the complexity of sending transactional and marketing messages**.

#### Here's a brief overview of how things work.

When a user signs-up on your web or mobile app, you insert their details (name, email, number, etc.) into SENDUNE. Thereafter any action done by that user can be inserted and tracked in SENDUNE. For example if a user adds '<mark style="color:purple;">purple pants</mark>' to their wish-list, you attach the tag '<mark style="color:purple;">purple pants</mark>' to that user. All of this is done using the '[<mark style="color:red;">Contacts API</mark>](https://docs.sendune.com/contacts)'. You can then filter your users using a combination of tags to send targeted messages (Emails, SMS, OTP's).

Messages can be sent manually, programmatically (API), or by using workflow/automation rules. For example you can trigger a workflow as soon as a particular tag is added to a contact.

SENDUNE [<mark style="color:red;">integrates</mark>](https://docs.sendune.com/get-started) with your own AWS account to send messages. Why? Because AWS is unbeatable in terms of cost and message reliability.

SENDUNE uses the following services within your AWS account.

| AWS Service                                  | Purpose                                            |
| -------------------------------------------- | -------------------------------------------------- |
| SES                                          | to send emails                                     |
| SNS, Cloudwatch                              | for email statistics (delivery, open, click, etc.) |
| S3                                           | to store images associated with your emails        |
| SQS (legacy - only for accounts before 2021) | for queuing and processing delivery statistics     |


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