Spotler Pure360 (formerly Pure360) is another Spotler group product serving UK mid-market and enterprise B2C brands with AI-driven send-time optimization, behavioral segmentation, and multi-channel messaging. The unsubscribe mechanism uses the ##UNSUBSCRIBE## merge tag auto-injected into every campaign footer, and Spotler Pure360 emits RFC 8058 headers automatically for authenticated sending domains. Consent is tracked at the contact level with UK PECR enforcement. This guide covers the tag, the Spotler group positioning, and how to verify the setup end to end.
Spotler Pure360 unsubscribe link
| Tag syntax | ##UNSUBSCRIBE## |
| Placement | Auto-embedded in every campaign footer |
| Scope | Contact-level opt-out with UK PECR enforcement |
| Config path | Settings > Sender identities > Email footer |
| RFC 8058 one-click | Yes, automatic for authenticated sending domains |
How to add the unsubscribe tag in Spotler Pure360
Place the merge tag exactly as shown below in the email template. Spotler Pure360 replaces it at send time with a signed URL scoped to the recipient and campaign.
##UNSUBSCRIBE##For custom HTML templates, wrap the tag in an anchor to render a proper hyperlink in the delivered email:
<a href="##UNSUBSCRIBE##">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.
Spotler Pure360 (formerly Pure360, UK-founded) is a distinct product line within the Spotler group from SendPro, Flowmailer, Mail+ (formerly Webpower), and MailPro. Each product uses different template syntax and admin conventions due to different acquisition histories. Customers running multiple Spotler products should verify which product family a given account belongs to before applying merge tag conventions.
Testing your Spotler Pure360 unsubscribe link
- Send a test message to a controlled Gmail address you own via the Spotler Pure360 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
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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 Spotler Pure360 unsubscribe link (step by step)
Spotler Pure360 default templates include the unsubscribe link in the footer, but custom HTML templates require the tag inserted manually.
- Open your campaign or template in the Spotler Pure360 editor.
- Add or edit a text block in the footer where the unsubscribe link should appear.
- Insert the merge tag
##UNSUBSCRIBE##. Spotler Pure360 replaces it at send time with a signed URL scoped to the contact. - Wrap it in an anchor:
<a href="##UNSUBSCRIBE##">Unsubscribe</a>. - Configure the sending domain under Settings > Sender identities.
- Send a test to a seed address and verify the rendered link routes to the Spotler-hosted preference page.
Spotler product family disambiguation
Spotler Pure360 (formerly Pure360, UK-founded) is a distinct product line within the Spotler group from SendPro, Flowmailer, Mail+ (formerly Webpower), and MailPro. Each product uses different template syntax and admin conventions due to different acquisition histories. Customers running multiple Spotler products should verify which product family a given account belongs to before applying merge tag conventions. Pure360 focuses on UK B2C mid-market with AI-driven send-time optimization as a key differentiator.
RFC 8058 one-click headers
Spotler Pure360 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 Settings > Sender identities. SPF and DKIM records must be verified. UK data residency defaults align with UK PECR and GDPR expectations for British B2C brands.
AI-driven send-time optimization and behavioral segmentation
Spotler Pure360 AI-driven send-time optimization predicts per-contact optimal send times based on historical engagement. Opt-out events remove the contact from send-time optimization scoring immediately. Behavioral segmentation uses purchase, browse, and engagement signals to build dynamic segments. Contacts opting out are excluded from all segment refreshes automatically, preventing accidental sends from segment updates.
Frequently Asked Questions
What is the Spotler Pure360 unsubscribe tag?
The merge tag is ##UNSUBSCRIBE##. Spotler Pure360 replaces it at send time with a signed URL scoped to the contact. Use it inside an anchor: <a href="##UNSUBSCRIBE##">Unsubscribe</a>.
How does Spotler Pure360 differ from Spotler SendPro?
Different Spotler group products from different acquisitions. Pure360 (formerly Pure360, UK-founded) focuses on UK B2C mid-market with AI-driven send-time optimization. SendPro focuses on mid-market SMB. Each has different template syntax and admin UI.
Does Spotler Pure360 support one-click unsubscribe for Gmail and Yahoo?
Yes, automatically for authenticated domains. Spotler Pure360 injects List-Unsubscribe and List-Unsubscribe-Post headers on every marketing send from domains verified under Settings > Sender identities.
Does AI send-time optimization respect opt-outs?
Yes. Opt-out events remove the contact from send-time optimization scoring immediately. Behavioral segmentation refreshes also exclude opted-out contacts, preventing accidental sends from segment updates.
Can I migrate templates between Spotler products?
Requires conversion. Each Spotler product uses different template syntax due to different acquisition histories. Cross-product template migration should be planned during vendor consolidation with test sends before full rollout.
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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