> ## Documentation Index
> Fetch the complete documentation index at: https://docs.supercycle.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Supercycle notifications

> Customize and configure Supercycle's transactional customer email notifications

Supercycle has email notifications that are sent to the customer. Notifications are triggered by events, like a new return being requested, or credits being recredited.

## Customer email notifications

These emails are sent to your customers when certain events occur:

<AccordionGroup>
  <Accordion title="Return requested" icon="rotate-left">
    Sent when a customer requests a return.
  </Accordion>

  <Accordion title="Return approved" icon="rotate-left">
    Sent when a return request is approved.
  </Accordion>

  <Accordion title="Return received" icon="rotate-left">
    Sent when a return has been received.
  </Accordion>

  <Accordion title="Return recredited" icon="rotate-left">
    Sent when a return is recredited.
  </Accordion>

  <Accordion title="Return item reminder" icon="bell">
    Reminds a customer that one or more rented items are due back soon.
  </Accordion>

  <Accordion title="Subscribed to plan" icon="repeat">
    Sent when a customer subscribes to a plan.
  </Accordion>

  <Accordion title="Subscription cancelled" icon="circle-xmark">
    Sent when a customer's subscription is cancelled.
  </Accordion>

  <Accordion title="Renewal reminder" icon="bell">
    Sent ahead of a subscription renewal.
  </Accordion>

  <Accordion title="Failed charge" icon="credit-card">
    Sent when a customer's charge fails.
  </Accordion>

  <Accordion title="Contract ready to sign" icon="file-signature">
    Sent when a customer has a rental contract that's ready to be signed.
  </Accordion>

  <Accordion title="Contract signing reminder" icon="file-signature">
    Sent to remind a customer to sign an outstanding rental contract.
  </Accordion>

  <Accordion title="Contract signed" icon="file-signature">
    Sent once a customer has signed their rental contract.
  </Accordion>

  <Accordion title="ID verification required" icon="id-card">
    Sent when a customer needs to complete identity verification before their rental can proceed.
  </Accordion>
</AccordionGroup>

## Editing email notifications

You can edit the wording of your notifications:

<Steps>
  <Step title="Open Supercycle">
    From your Shopify admin, go to apps then [Supercycle.](https://admin.shopify.com/apps/supercycle/)
  </Step>

  <Step title="Go to Languages">
    Go to Settings then [Languages](https://admin.shopify.com/apps/supercycle/settings/languages/)
  </Step>

  <Step title="Select your language">
    Click on the language you would like to change.
  </Step>

  <Step title="Choose the email to edit">
    Under Customer mailers choose the email you would like to edit.
  </Step>

  <Step title="Edit and save">
    Edit the fields, then click **Save**.
  </Step>
</Steps>

## Preview email notifications

To preview an email notification:

<Steps>
  <Step title="Open Supercycle">
    From your Shopify admin, go to apps then [Supercycle.](https://admin.shopify.com/apps/supercycle/)
  </Step>

  <Step title="Go to Emails">
    Go to Settings then [Emails.](https://admin.shopify.com/apps/supercycle/settings/emails/)
  </Step>

  <Step title="Preview the email">
    Hover over the email you want to preview and click **Preview.**
  </Step>
</Steps>

## Change the reply-to email address

You can change the reply-to email address of the email notifications your customers receive:

<Steps>
  <Step title="Open Supercycle">
    From your Shopify admin, go to apps then [Supercycle.](https://admin.shopify.com/apps/supercycle/)
  </Step>

  <Step title="Go to Emails">
    Go to Settings then [Emails.](https://admin.shopify.com/apps/supercycle/settings/emails/)
  </Step>

  <Step title="Update and save">
    Edit the Reply to address field, then click **Save**.
  </Step>
</Steps>

<Info>
  The email will be sent from [noreply@notify.supercycle.com](mailto:noreply@notify.supercycle.com). If you want to
  change this to a custom domain please get in touch.
</Info>

## Custom SMTP

By default, Supercycle delivers all transactional emails through its own mail provider. If you'd prefer to send those emails from your own domain and mail infrastructure, you can connect a custom SMTP server.

<Tip>
  We recommend using a dedicated transactional email service such as
  [Postmark](https://postmarkapp.com/) or [Resend](https://resend.com/) rather
  than a general-purpose mailbox. These services offer better deliverability,
  bounce handling, and analytics for transactional mail.
</Tip>

When a custom SMTP server is configured and enabled:

* Outgoing customer emails are sent through your SMTP server.
* The **From** address you configure is used in place of Supercycle's default.
* If the SMTP integration is disabled or removed, Supercycle automatically falls back to its default mail provider — no emails are lost.

### Before you start

You'll need the following details from your SMTP provider (for example, Postmark, Resend, Amazon SES, SendGrid, Mailgun, or your own mail server):

* **Host** — the SMTP server hostname (for example, `smtp.sendgrid.net`).
* **Port** — typically `587` for STARTTLS or `465` for implicit TLS.
* **Username** and **password** — credentials for an account authorised to send mail.
* **From address** — the email address that will appear in the **From** header. Make sure this address is authorised by your provider, with SPF, DKIM, and DMARC records configured on your domain.
* **Authentication method** — usually `plain`. `login` and `cram_md5` are also supported.

### Configure custom SMTP

<Steps>
  <Step title="Open Supercycle">
    From your Shopify admin, go to apps then [Supercycle](https://admin.shopify.com/apps/supercycle/).
  </Step>

  <Step title="Go to Emails">
    Go to **Settings** then **Emails**.
  </Step>

  <Step title="Enable Custom SMTP">
    Scroll to the **Custom SMTP** section at the bottom of the page, toggle it on, then click **Configure SMTP server**.
  </Step>

  <Step title="Enter your SMTP details">
    Fill in **Host**, **Port**, **Username**, **Password**, and **From address**. Choose an **Authentication** method, and optionally set a **HELO domain**. Leave **Enable STARTTLS** checked unless your provider requires otherwise.
  </Step>

  <Step title="Save">
    Click **Save**. Supercycle stores your credentials securely and your password is encrypted at rest.
  </Step>
</Steps>

### Send a test email

After saving, use **Send test email** to verify the configuration. Supercycle sends a test message to the shop's contact email address using the credentials you provided.

If the test fails, the error message returned by your SMTP server is shown so you can correct the host, port, credentials, or sender address.

### Edit or remove the integration

* To update credentials, click **Edit** on the Custom SMTP section. Leave the password field blank to keep the existing password.
* To stop using your SMTP server, toggle the section off or click **Remove**. Supercycle immediately reverts to its default mail provider for all future emails.