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Documentation Index

Fetch the complete documentation index at: https://docs.supercycle.com/llms.txt

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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.

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Customer email notifications

These emails are sent to your customers when certain events occur:
Sent when a customer requests a return.
Sent when a return request is approved.
Sent when a return has been received.
Sent when a return is recredited.
Reminds a customer that one or more rented items are due back soon.
Sent when a customer subscribes to a plan.
Sent when a customer’s subscription is cancelled.
Sent ahead of a subscription renewal.
Sent when a customer’s charge fails.
Sent when a customer has a rental contract that’s ready to be signed.
Sent to remind a customer to sign an outstanding rental contract.
Sent once a customer has signed their rental contract.
Sent when a customer needs to complete identity verification before their rental can proceed.

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Editing email notifications

You can edit the wording of your notifications:
1

Open Supercycle

From your Shopify admin, go to apps then Supercycle.
2

Go to Languages

Go to Settings then Languages
3

Select your language

Click on the language you would like to change.
4

Choose the email to edit

Under Customer mailers choose the email you would like to edit.
5

Edit and save

Edit the fields, then click Save.

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Preview email notifications

To preview an email notification:
1

Open Supercycle

From your Shopify admin, go to apps then Supercycle.
2

Go to Emails

Go to Settings then Emails.
3

Preview the email

Hover over the email you want to preview and click Preview.

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Change the reply-to email address

You can change the reply-to email address of the email notifications your customers receive:
1

Open Supercycle

From your Shopify admin, go to apps then Supercycle.
2

Go to Emails

Go to Settings then Emails.
3

Update and save

Edit the Reply to address field, then click Save.
The email will be sent from noreply@notify.supercycle.com. If you want to change this to a custom domain please get in touch.

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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.
We recommend using a dedicated transactional email service such as Postmark or Resend rather than a general-purpose mailbox. These services offer better deliverability, bounce handling, and analytics for transactional mail.
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.

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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.

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Configure custom SMTP

1

Open Supercycle

From your Shopify admin, go to apps then Supercycle.
2

Go to Integrations

Go to Settings then Integrations.
3

Enable Custom SMTP

Find the Custom SMTP section and toggle it on, then click Configure SMTP server.
4

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.
5

Save

Click Save. Supercycle stores your credentials securely and your password is encrypted at rest.

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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.

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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.