AiTrillion is a Shopify-focused AI-driven marketing automation app combining email, SMS, push, loyalty programs, and product recommendations for Shopify merchants. The unsubscribe mechanism uses the {{unsubscribe_url}} merge tag auto-injected into every campaign footer, and AiTrillion emits RFC 8058 headers automatically for authenticated sending domains. Consent is tracked at the Shopify customer level with two-way sync to the Shopify customer record. This guide covers the tag, the Shopify integration model, and how to verify the setup end to end.
airtrillion unsubscribe link
| Tag syntax | {{unsubscribe_url}} |
| Placement | Auto-embedded in every campaign footer |
| Scope | Shopify customer-level opt-out with two-way sync |
| Config path | Shopify Admin > Apps > AiTrillion > Email settings |
| RFC 8058 one-click | Yes, automatic for authenticated sending domains |
How to add the unsubscribe tag in airtrillion
Place the merge tag exactly as shown below in the email template. airtrillion replaces it at send time with a signed URL scoped to the recipient and campaign.
{{unsubscribe_url}}For custom HTML templates, wrap the tag in an anchor to render a proper hyperlink in the delivered email:
<a href="{{unsubscribe_url}}">Unsubscribe from this list</a>Auto-embedded in every campaign footer
Yes, automatic for authenticated sending domains The recipient's mailbox provider (Gmail, Yahoo) uses the List-Unsubscribe-Post header to expose the native one-click button on the message. Requires domain authentication with DKIM and DMARC.
AiTrillion multi-channel platform (email, SMS, push, loyalty) unifies opt-out state across channels by default. An email opt-out can propagate to SMS and push suppression if configured, matching TCPA and GDPR cross-channel consent expectations. Loyalty program participation typically bypasses marketing consent for transactional loyalty communications (points earned, tier changes) but marketing-classified loyalty promotions still honor the opt-out flag.
Testing your airtrillion unsubscribe link
- Send a test message to a controlled Gmail address you own via the airtrillion campaign preview action
- Click the footer unsubscribe link and confirm the opt-out on the landing page
- Check the subscriber or contact record: the status should be Unsubscribed within seconds
- Verify the RFC 8058 headers in Gmail: open the message, click three dots, then Show original. Look for
List-UnsubscribeandList-Unsubscribe-Post: List-Unsubscribe=One-Click
Want the full 222-platform reference?
See the pillar guide with the compliance landscape, the RFC 8058 deep dive, and the unsubscribe tag for every ESP: How to add an unsubscribe link: the complete 2026 guide →
How to add the AiTrillion unsubscribe link (step by step)
AiTrillion default templates include the unsubscribe link in the footer, but custom HTML templates require the tag inserted manually inside the Shopify admin.
- Open Shopify Admin > Apps > AiTrillion > Campaigns.
- Edit the campaign or template where the unsubscribe link should appear.
- Insert the merge tag
{{unsubscribe_url}}. AiTrillion replaces it at send time with a signed URL scoped to the Shopify customer. - Wrap it in an anchor:
<a href="{{unsubscribe_url}}">Unsubscribe</a>. - Verify the sender identity is configured under Shopify Admin > Apps > AiTrillion > Email settings.
- Send a test to a seed address and verify the rendered link routes to the AiTrillion-hosted preference page and syncs opt-out state back to Shopify customer marketing preferences.
Multi-channel platform and cross-channel opt-out
AiTrillion multi-channel platform (email, SMS, push, loyalty) unifies opt-out state across channels by default. An email opt-out can propagate to SMS and push suppression if configured, matching TCPA and GDPR cross-channel consent expectations. Loyalty program participation typically bypasses marketing consent for transactional loyalty communications (points earned, tier changes) but marketing-classified loyalty promotions still honor the opt-out flag. Configure per-channel scoping in the AiTrillion admin to match Shopify merchant preferences for granular vs unified opt-out.
RFC 8058 one-click headers
AiTrillion added RFC 8058 one-click unsubscribe automatically ahead of the Google and Yahoo February 2024 requirements. The List-Unsubscribe and List-Unsubscribe-Post headers inject on every marketing send from domains authenticated under Shopify Admin > Apps > AiTrillion > Email settings. SPF and DKIM records must be verified through the AiTrillion sender verification flow. Shopify SPF alignment is often preconfigured for Shopify-hosted sending, simplifying setup compared to standalone ESPs.
AI recommendations and loyalty program consent
AiTrillion AI-driven product recommendations personalize email content based on Shopify customer browse, purchase, and engagement history. Opt-out events remove the customer from the recommendation model immediately. Loyalty program tier-change and points-earned notifications typically qualify for transactional exemption, but marketing-classified loyalty promotions (double points weekends, tier upgrade campaigns) honor the opt-out flag. Configure the message classification carefully at campaign setup to avoid compliance edge cases.
Frequently Asked Questions
What is the AiTrillion unsubscribe tag?
The merge tag is {{unsubscribe_url}}. AiTrillion replaces it at send time with a signed URL scoped to the Shopify customer. Use it inside an anchor: <a href="{{unsubscribe_url}}">Unsubscribe</a>.
Does AiTrillion sync opt-outs to Shopify?
Yes automatically. Opt-outs flow to the Shopify customer marketing preference flag as accepts_marketing=false, making the Shopify customer record the single source of truth for consent state.
Does AiTrillion support one-click unsubscribe for Gmail and Yahoo?
Yes, automatically for authenticated sending domains. Shopify SPF alignment is often preconfigured for Shopify-hosted sending, simplifying setup compared to standalone ESPs.
Do loyalty program notifications bypass AiTrillion opt-out?
Transactional loyalty communications (points earned, tier changes) qualify for transactional exemption. Marketing-classified loyalty promotions (double points weekends, tier upgrade campaigns) honor the opt-out flag. Configure message classification carefully.
How does AiTrillion differ from Seguno or Omnisend?
AiTrillion differentiates with AI-driven product recommendations and integrated loyalty program. Seguno focuses on Shopify-native email simplicity. Omnisend targets a broader e-commerce audience with deeper automation. Vendor choice depends on loyalty and AI needs.
About the Author
Alaa · LinkedIn
Email infrastructure specialist with 8+ years of hands-on experience in SMTP, deliverability, and email verification. I’ve configured and troubleshot mail systems across Postfix, Exchange, and cloud relays, managed IP reputation and warmup campaigns, and built verification pipelines processing millions of addresses. My work spans DNS authentication (SPF, DKIM, DMARC, BIMI), bounce handling, blocklist monitoring, and compliance frameworks including CAN-SPAM and GDPR. I write every article on SMTPedia to give email professionals, developers, and marketers the accurate, RFC-grounded reference they need.
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