diff --git a/.env.example b/.env.example
index 4e81288..6f6de61 100644
--- a/.env.example
+++ b/.env.example
@@ -24,6 +24,12 @@ AWS_SECRET_ACCESS_KEY=
 # One of: AWS_SES, NODE_MAILER
 EMAIL_PROVIDER=NODE_MAILER
 
+# If you want to whitelist specific domains to which the app can send emails - separated by comma.
+WHITELISTED_DOMAINS=
+
+# Used in `send-notification` endpoint for authentication if you do not want to use Saleor JWT verification.
+AUTHORIZATION_TOKEN=
+
 # Localstack only. When using AWS please comment this out
 FROM_DOMAIN=mirumee.com
 AWS_ENDPOINT_URL=http://host.docker.internal:4566
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ad94be6..23ea15f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -43,11 +43,11 @@ jobs:
       - name: Configure AWS credentials
         uses: aws-actions/configure-aws-credentials@master
         with:
-          role-to-assume: arn:aws:iam::414357773561:role/nimara-mailer
+          role-to-assume: ${{ vars.AWS_ROLE_ARN }}
           aws-region: eu-central-1
 
       - name: Copy ZIP
-        run: aws s3 cp artifact.zip s3://marina-artifacts/lambda/lambda-mailer-${{ env.GIT_DESCRIBE }}.zip --quiet
+        run: aws s3 cp artifact.zip ${{ vars.AWS_BUCKET }}/lambda-mailer-${{ env.GIT_DESCRIBE }}.zip --quiet
 
       - name: ZIP tag
         run: echo "${{ env.GIT_DESCRIBE }}"
diff --git a/.release-it.json b/.release-it.json
index 708d28b..fe657c3 100644
--- a/.release-it.json
+++ b/.release-it.json
@@ -1,6 +1,6 @@
 {
   "git": {
-    "commitMessage": "chore(release): v${version}",
+    "commitMessage": "chore(release): Release v${version}",
     "push": true,
     "commit": true,
     "tag": true,
@@ -19,7 +19,31 @@
     "@release-it/conventional-changelog": {
       "preset": "conventionalcommits",
       "infile": "CHANGELOG.md",
-      "header": "# Changelog"
+      "header": "# Changelog",
+      "types": [
+        { "type": "feat", "section": "Features" },
+        { "type": "fix", "section": "Bug Fixes" },
+        { "type": "chore", "section": "Chores" },
+        { "type": "ci", "section": "CI/CD" },
+        { "type": "docs", "section": "Documentation" },
+        { "type": "style", "section": "Styling" },
+        { "type": "refactor", "section": "Refactoring" },
+        { "type": "perf", "section": "Performance" },
+        { "type": "test", "section": "Testing" }
+      ],
+      "commitUrlFormat": "{{host}}/{{owner}}/{{repository}}/commit/{{hash}}",
+      "issueUrlFormat": "https://mirumee.atlassian.net/browse/{{ticket}}",
+      "userUrlFormat": "{{host}}/{{user}}",
+      "parserOpts": {
+        "presetConfig": {
+          "headerPattern": "^\\[(\\w+-\\d+)\\] (\\w*)(?:\\((.*)\\))?: (.*)$",
+          "headerCorrespondence": ["ticket", "type", "scope", "subject"],
+          "referenceActions": ["resolves"],
+          "issuePrefixes": ["MS-"],
+          "mergeCorrespondence": ["ticket"],
+          "mergePattern": "^.*\\(MS-(\\d+)\\).*$"
+        }
+      }
     }
   }
 }
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..8e213a9
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,13 @@
+BSD 3-Clause License
+
+Copyright 2024, Mirumee Labs
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/README.md b/README.md
index 02df970..730572a 100644
--- a/README.md
+++ b/README.md
@@ -10,25 +10,31 @@
 
 <div align="center">
   <h1>Nimara Mailer</h1>
-  <strong>TypeScript serverless app for sending emails from Saleor.</strong>
+  <strong>TypeScript serverless app for sending emails from <a href="https://github.com/saleor/saleor">Saleor</a>. And more!</strong>
 </div>
 <br />
+<br />
 
-## Local development
+App designed to work in AWS cloud using lambda functions, SQS and secret manager.
+It has two main components:
+- [events-receiver](src/events-receiver.ts) - responsible for receiving events from Saleor (or custom ones via http) and pushing them to SQS queue.
+- [email-sender](src/emails-sender.ts) - responsible for receiving events from SQS queue via lambda triggers and sending emails.
 
-1. Setup required envs. You can copy `.env.example` to `.env` and adjust it.
+Upon build, it outputs two files. Each, for one component. Both share same environment variables. When deployed to lambda, specify the following handlers:
+- `events-receiver.handler`
+- `emails-sender.handler`
+
+When installing the app in Saleor, it will store it's configuration in the secret manager. Therfore, the secret should be created beforehand with empty object (`{}`) and the name should be specified in  `SECRET_MANAGER_APP_CONFIG_PATH` env.
 
-   ```
-   SALEOR_URL=<e.g. https://your.eu.saleor.cloud>
-   STATIC_URL=<where from emails static images will be served>
-   SQS_QUEUE_URL=
+If you want to change supported events, you can do it in the [const](src/const.ts) file editing `SALEOR_EVENTS` or `CUSTOM_EVENTS` constants.
 
-   AWS_ACCESS_KEY_ID=
-   AWS_REGION=
-   AWS_SECRET_ACCESS_KEY=
-   SECRET_MANAGER_APP_CONFIG_PATH=<secret manager config name>
-   ```
+When adding new events, remember to update [TEMPLATES_MAP](src/lib/emails/const.ts) constant with the proper template and extract email function.
 
+---
+
+## Local development
+
+1. Setup required envs. You can copy `.env.example` to `.env` and adjust it.
 2. [`nvm use`](https://github.com/nvm-sh/nvm) - to set proper node version.
 3. [`pnpm install`](https://pnpm.io/installation) - to install dependencies.
 4. `pnpm dev` - to start the app.
@@ -40,18 +46,6 @@
 Alternatively, you can use docker to run the app.
 
 1. Setup required envs. You can copy `.env.example` to `.env` and adjust it.
-
-   ```
-   SALEOR_URL=<e.g. https://your.eu.saleor.cloud>
-   STATIC_URL=<where from emails static images will be served>
-   SQS_QUEUE_URL=
-
-   AWS_ACCESS_KEY_ID=
-   AWS_REGION=
-   AWS_SECRET_ACCESS_KEY=
-   SECRET_MANAGER_APP_CONFIG_PATH=<secret manager config name>
-   ```
-
 2. `docker compose build` - build the app.
 3. `docker compose run --rm --service-ports app` - run the app.
 
@@ -229,3 +223,10 @@ or
 ```
 $ pnpm test:watch
 ```
+
+<br>
+<div align="center"> <strong>Crafted with ❤️ by Mirumee Software</strong>
+
+[hello@mirumee.com](mailto:hello@mirumee.com)
+
+</div>
diff --git a/src/emails-sender.ts b/src/emails-sender.ts
index 5a6c041..703caa6 100644
--- a/src/emails-sender.ts
+++ b/src/emails-sender.ts
@@ -88,7 +88,7 @@ export const handler = Sentry.wrapHandler(
 
         await sender.send({
           html,
-          subject: template.Subject,
+          subject: template.getSubject(data),
         });
 
         logger.info("Email sent successfully.", { toEmail, event });
diff --git a/src/emails/templates/custom/CustomEventEmail.tsx b/src/emails/templates/custom/CustomEventEmail.tsx
index 4752aad..f2b07a5 100644
--- a/src/emails/templates/custom/CustomEventEmail.tsx
+++ b/src/emails/templates/custom/CustomEventEmail.tsx
@@ -11,7 +11,7 @@ type CustomEventEmailProps = CustomEventData<
 >;
 
 const CustomEventEmail = ({
-  data: { channel, email, name },
+  data: { channel, name },
 }: CustomEventEmailProps) => {
   return (
     <Layout channel={channel} previewText="Custom event">
@@ -34,6 +34,7 @@ const previewProps: CustomEventEmailProps = {
 };
 
 CustomEventEmail.PreviewProps = previewProps;
-CustomEventEmail.Subject = "Custom event";
+
+CustomEventEmail.getSubject = (data: CustomEventEmailProps) => "Custom event";
 
 export default CustomEventEmail;
diff --git a/src/emails/templates/saleor/AccountChangeEmailRequestedEmail.tsx b/src/emails/templates/saleor/AccountChangeEmailRequestedEmail.tsx
index 7d44369..2330bf6 100644
--- a/src/emails/templates/saleor/AccountChangeEmailRequestedEmail.tsx
+++ b/src/emails/templates/saleor/AccountChangeEmailRequestedEmail.tsx
@@ -51,6 +51,9 @@ const previewProps: AccountChangeEmailRequestedEmailProps = {
 };
 
 AccountChangeEmailRequestedEmail.PreviewProps = previewProps;
-AccountChangeEmailRequestedEmail.Subject = "Account change email requested";
+
+AccountChangeEmailRequestedEmail.getSubject = (
+  data: AccountChangeEmailRequestedEmailProps
+) => "Account change email requested";
 
 export default AccountChangeEmailRequestedEmail;
diff --git a/src/emails/templates/saleor/AccountConfirmationRequestedEmail.tsx b/src/emails/templates/saleor/AccountConfirmationRequestedEmail.tsx
index 58a0ebd..311cdc2 100644
--- a/src/emails/templates/saleor/AccountConfirmationRequestedEmail.tsx
+++ b/src/emails/templates/saleor/AccountConfirmationRequestedEmail.tsx
@@ -50,7 +50,9 @@ const previewProps: AccountConfirmationRequestedEmailProps = {
 };
 
 AccountConfirmationRequestedEmail.PreviewProps = previewProps;
-AccountConfirmationRequestedEmail.Subject =
-  "Account confirmation requested email";
+
+AccountConfirmationRequestedEmail.getSubject = (
+  data: AccountConfirmationRequestedEmailProps
+) => "Account confirmation requested email";
 
 export default AccountConfirmationRequestedEmail;
diff --git a/src/emails/templates/saleor/AccountConfirmedEmail.tsx b/src/emails/templates/saleor/AccountConfirmedEmail.tsx
index f8a6f48..b87b488 100644
--- a/src/emails/templates/saleor/AccountConfirmedEmail.tsx
+++ b/src/emails/templates/saleor/AccountConfirmedEmail.tsx
@@ -37,6 +37,8 @@ const previewProps: AccountConfirmedEmailProps = {
 };
 
 AccountConfirmedEmail.PreviewProps = previewProps;
-AccountConfirmedEmail.Subject = "Account confirmed";
+
+AccountConfirmedEmail.getSubject = (data: AccountConfirmedEmailProps) =>
+  "Account confirmed";
 
 export default AccountConfirmedEmail;
diff --git a/src/emails/templates/saleor/AccountDeleteRequestedEmail.tsx b/src/emails/templates/saleor/AccountDeleteRequestedEmail.tsx
index 693ecf1..53e627e 100644
--- a/src/emails/templates/saleor/AccountDeleteRequestedEmail.tsx
+++ b/src/emails/templates/saleor/AccountDeleteRequestedEmail.tsx
@@ -46,6 +46,9 @@ const previewProps: AccountDeleteRequestedEmailProps = {
 };
 
 AccountDeleteRequestedEmail.PreviewProps = previewProps;
-AccountDeleteRequestedEmail.Subject = "Account delete requested";
+
+AccountDeleteRequestedEmail.getSubject = (
+  data: AccountDeleteRequestedEmailProps
+) => "Account delete requested";
 
 export default AccountDeleteRequestedEmail;
diff --git a/src/emails/templates/saleor/AccountDeletedEmail.tsx b/src/emails/templates/saleor/AccountDeletedEmail.tsx
index 5caddf8..4355c1f 100644
--- a/src/emails/templates/saleor/AccountDeletedEmail.tsx
+++ b/src/emails/templates/saleor/AccountDeletedEmail.tsx
@@ -40,6 +40,8 @@ const previewProps: AccountDeletedEmailProps = {
 };
 
 AccountDeletedEmail.PreviewProps = previewProps;
-AccountDeletedEmail.Subject = "Account Deleted";
+
+AccountDeletedEmail.getSubject = (data: AccountDeletedEmailProps) =>
+  "Account Deleted";
 
 export default AccountDeletedEmail;
diff --git a/src/emails/templates/saleor/AccountEmailChangedEmail.tsx b/src/emails/templates/saleor/AccountEmailChangedEmail.tsx
index b981b3e..78628cd 100644
--- a/src/emails/templates/saleor/AccountEmailChangedEmail.tsx
+++ b/src/emails/templates/saleor/AccountEmailChangedEmail.tsx
@@ -32,6 +32,8 @@ const previewProps: AccountEmailChangedEmailProps = {
 };
 
 AccountEmailChangedEmail.PreviewProps = previewProps;
-AccountEmailChangedEmail.Subject = "Account email changed";
+
+AccountEmailChangedEmail.getSubject = (data: AccountEmailChangedEmailProps) =>
+  "Account email changed";
 
 export default AccountEmailChangedEmail;
diff --git a/src/emails/templates/saleor/AccountSetPasswordRequestedEmail.tsx b/src/emails/templates/saleor/AccountSetPasswordRequestedEmail.tsx
index 6b407cb..2fcfb08 100644
--- a/src/emails/templates/saleor/AccountSetPasswordRequestedEmail.tsx
+++ b/src/emails/templates/saleor/AccountSetPasswordRequestedEmail.tsx
@@ -50,6 +50,9 @@ const previewProps: AccountSetPasswordRequestedEmailProps = {
 };
 
 AccountSetPasswordRequestedEmail.PreviewProps = previewProps;
-AccountSetPasswordRequestedEmail.Subject = "Account set password requested";
+
+AccountSetPasswordRequestedEmail.getSubject = (
+  data: AccountSetPasswordRequestedEmailProps
+) => "Account set password requested";
 
 export default AccountSetPasswordRequestedEmail;
diff --git a/src/emails/templates/saleor/FulfillmentCreatedEmail.tsx b/src/emails/templates/saleor/FulfillmentCreatedEmail.tsx
index 00105ee..3ed7fd2 100644
--- a/src/emails/templates/saleor/FulfillmentCreatedEmail.tsx
+++ b/src/emails/templates/saleor/FulfillmentCreatedEmail.tsx
@@ -132,6 +132,8 @@ const previewProps: FulfillmentCreatedEmailProps = {
 };
 
 FulfillmentCreatedEmail.PreviewProps = previewProps;
-FulfillmentCreatedEmail.Subject = "Fulfillment updated";
+
+FulfillmentCreatedEmail.getSubject = (data: FulfillmentCreatedEmailProps) =>
+  "Fulfillment updated";
 
 export default FulfillmentCreatedEmail;
diff --git a/src/emails/templates/saleor/FulfillmentTrackingNumberUpdatedEmail.tsx b/src/emails/templates/saleor/FulfillmentTrackingNumberUpdatedEmail.tsx
index 403eedf..c5e1a49 100644
--- a/src/emails/templates/saleor/FulfillmentTrackingNumberUpdatedEmail.tsx
+++ b/src/emails/templates/saleor/FulfillmentTrackingNumberUpdatedEmail.tsx
@@ -150,6 +150,9 @@ const previewProps: FulfillmentTrackingNumberUpdatedEmailProps = {
 };
 
 FulfillmentTrackingNumberUpdatedEmail.PreviewProps = previewProps;
-FulfillmentTrackingNumberUpdatedEmail.Subject = "Tracking number updated";
+
+FulfillmentTrackingNumberUpdatedEmail.getSubject = (
+  data: FulfillmentTrackingNumberUpdatedEmailProps
+) => "Tracking number updated";
 
 export default FulfillmentTrackingNumberUpdatedEmail;
diff --git a/src/emails/templates/saleor/GiftCardSentEmail.tsx b/src/emails/templates/saleor/GiftCardSentEmail.tsx
index aaa52c1..a236eec 100644
--- a/src/emails/templates/saleor/GiftCardSentEmail.tsx
+++ b/src/emails/templates/saleor/GiftCardSentEmail.tsx
@@ -46,6 +46,8 @@ const previewProps: GiftCardSentEmailProps = {
 };
 
 GiftCardSentEmail.PreviewProps = previewProps;
-GiftCardSentEmail.Subject = "Gift card sent";
+
+GiftCardSentEmail.getSubject = (data: GiftCardSentEmailProps) =>
+  "Gift card sent";
 
 export default GiftCardSentEmail;
diff --git a/src/emails/templates/saleor/OrderCancelledEmail.tsx b/src/emails/templates/saleor/OrderCancelledEmail.tsx
index 338a63f..4d1f47c 100644
--- a/src/emails/templates/saleor/OrderCancelledEmail.tsx
+++ b/src/emails/templates/saleor/OrderCancelledEmail.tsx
@@ -43,6 +43,8 @@ const previewProps: OrderCancelledEmailProps = {
 };
 
 OrderCancelledEmail.PreviewProps = previewProps;
-OrderCancelledEmail.Subject = "Order cancelled";
+
+OrderCancelledEmail.getSubject = (data: OrderCancelledEmailProps) =>
+  "Order cancelled";
 
 export default OrderCancelledEmail;
diff --git a/src/emails/templates/saleor/OrderCreatedEmail.tsx b/src/emails/templates/saleor/OrderCreatedEmail.tsx
index ab7a672..edb9360 100644
--- a/src/emails/templates/saleor/OrderCreatedEmail.tsx
+++ b/src/emails/templates/saleor/OrderCreatedEmail.tsx
@@ -140,6 +140,7 @@ const previewProps: OrderCreatedEmailProps = {
 };
 
 OrderCreatedEmail.PreviewProps = previewProps;
-OrderCreatedEmail.Subject = "Order placed";
+
+OrderCreatedEmail.getSubject = (data: OrderCreatedEmailProps) => "Order placed";
 
 export default OrderCreatedEmail;
diff --git a/src/emails/templates/saleor/OrderRefundedEmail.tsx b/src/emails/templates/saleor/OrderRefundedEmail.tsx
index fe03298..65ab206 100644
--- a/src/emails/templates/saleor/OrderRefundedEmail.tsx
+++ b/src/emails/templates/saleor/OrderRefundedEmail.tsx
@@ -138,6 +138,8 @@ const previewProps: OrderRefundedEmailProps = {
 };
 
 OrderRefundedEmail.PreviewProps = previewProps;
-OrderRefundedEmail.Subject = "Order refunded";
+
+OrderRefundedEmail.getSubject = (data: OrderRefundedEmailProps) =>
+  "Order refunded";
 
 export default OrderRefundedEmail;
diff --git a/src/lib/emails/const.ts b/src/lib/emails/const.ts
index 3039a3f..2919d42 100644
--- a/src/lib/emails/const.ts
+++ b/src/lib/emails/const.ts
@@ -30,7 +30,7 @@ const extractEmailFromCustomEvent = (data: { email: string }) => data.email;
 export const TEMPLATES_MAP: {
   [key in EmailEventType]?: {
     extractFn: (data: any) => string;
-    template: ComponentType<any> & { Subject: string };
+    template: ComponentType<any> & { getSubject: (data: any) => string };
   };
 } = {
   order_created: {