User.com is a Polish customer engagement platform combining CRM, marketing automation, live chat, and email marketing for mid-market SaaS and e-commerce teams. The unsubscribe mechanism uses the {{unsubscribe_link}} Liquid tag in email templates, and User.com emits RFC 8058 headers automatically for authenticated domains. Consent is tracked at the user profile level (User.com unifies contacts as users) with GDPR-oriented defaults reflecting European market expectations. This guide covers the tag, the unified user model, and how to verify the setup end to end.
User.com unsubscribe link
| Tag syntax | {{unsubscribe_link}} |
| Placement | Auto-embedded in default email footer |
| Scope | User profile-level opt-out with unified data model |
| Config path | Settings > Email > Sender configuration |
| RFC 8058 one-click | Yes, automatic for authenticated sender domains |
How to add the unsubscribe tag in User.com
Place the merge tag exactly as shown below in the email template. User.com replaces it at send time with a signed URL scoped to the recipient and campaign.
{{unsubscribe_link}}For custom HTML templates, wrap the tag in an anchor to render a proper hyperlink in the delivered email:
<a href="{{unsubscribe_link}}">Unsubscribe from this list</a>Auto-embedded in default email footer
Yes, automatic for authenticated sender 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.
User.com unifies contacts as users spanning email, live chat, and in-app messaging. An email unsubscribe applies only to the email channel, preserving live chat and in-app messaging on the same user record. Consumer SaaS brands enable cross-channel opt-out under org settings to make one unsubscribe apply globally; B2B teams keep per-channel control for transactional in-app messages.
Testing your User.com unsubscribe link
- Send a test message to a controlled Gmail address you own via the User.com 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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How to add the User.com unsubscribe link (step by step)
User.com email templates include the unsubscribe link in the default footer, but custom HTML templates and campaign-specific templates may require the tag inserted manually.
- Open your email campaign or template in the User.com editor.
- Add or edit a text block in the footer where the unsubscribe link should appear.
- Insert the Liquid tag
{{unsubscribe_link}}. User.com replaces it at send time with a signed URL scoped to the user profile. - Wrap it in an anchor:
<a href="{{unsubscribe_link}}">Unsubscribe</a>. - Add the physical postal address. User.com reads it from Settings > Company Info.
- Send a test to a seed address and verify the rendered link routes to the User.com-hosted preference page.
Unified user model across channels
User.com unifies contacts as users spanning email, live chat, in-app messaging, and web personalization. An email unsubscribe applies only to the email channel, preserving live chat replies and in-app notifications on the same user record. Consumer SaaS brands enable cross-channel opt-out under org settings to make one unsubscribe apply globally; B2B teams keep per-channel control for transactional in-app messages critical to product usage. This is analogous to the Customerly, Ortto, and Customer.io unified data models but with Polish-market GDPR defaults.
RFC 8058 one-click headers
User.com 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 email send from domains authenticated under Settings > Email > Sender configuration. SPF and DKIM records must be verified. Transactional API sends (welcome emails, password resets, in-app trigger emails) can include List-Unsubscribe headers via the headers parameter for consistency with marketing sends.
GDPR and European data residency
As a Polish platform serving European SaaS heavily, User.com defaults to GDPR-oriented behavior: double opt-in available at the campaign level, timestamped consent records per user, and permanent suppression on opt-out that blocks API reactivation. Reactivation requires the user to re-opt in through a signup form or explicit consent capture. Data residency is EU-based by default, matching European regulatory expectations. Enterprise accounts on paid tiers can request US or APAC data residency.
Frequently Asked Questions
What is the User.com unsubscribe tag?
The tag is {{unsubscribe_link}}. User.com replaces it at send time with a signed URL scoped to the user profile. Use it inside an anchor: <a href="{{unsubscribe_link}}">Unsubscribe</a>.
Does an email unsubscribe stop live chat on User.com?
No by default. Email unsubscribe applies only to the email channel, preserving live chat and in-app messaging on the same user record. Enable cross-channel opt-out under org settings to make one unsubscribe apply globally across all channels.
Does User.com support one-click unsubscribe for Gmail and Yahoo?
Yes, automatically for authenticated domains. User.com injects List-Unsubscribe and List-Unsubscribe-Post headers on every marketing email send from domains verified under Settings > Email > Sender configuration.
Where does User.com store user data?
In EU data centers by default, matching GDPR data residency expectations for European SaaS customers. Enterprise accounts on paid tiers can request US or APAC data residency if compliance or latency requirements demand it.
Can I resubscribe a user who unsubscribed from User.com?
No, not through the API. User.com enforces permanent suppression on email opt-outs and blocks API-driven reactivation. The user must re-opt in through a signup form or explicit consent capture, which resets the marketing consent flag.
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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