Sendgo is an email marketing platform serving SMBs with drag-and-drop editor, list management, and basic automation flows for small business email campaigns. The unsubscribe mechanism uses the {UNSUBSCRIBE_URL} merge tag auto-injected into every campaign footer, and Sendgo emits RFC 8058 headers automatically for authenticated sending domains. Consent is tracked at the list level with standard GDPR baseline enforcement. This guide covers the tag, the SMB model, and how to verify the setup end to end.
sendgomail.com unsubscribe link
| Tag syntax | {UNSUBSCRIBE_URL} |
| Placement | Auto-embedded in every campaign footer |
| Scope | Per-list opt-out with GDPR baseline |
| Config path | Settings > Sender identity > Footer template |
| RFC 8058 one-click | Yes, automatic for authenticated sending domains |
How to add the unsubscribe tag in sendgomail.com
Place the merge tag exactly as shown below in the email template. sendgomail.com 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.
Sendgo targets small business email marketing with straightforward SMB feature set. GDPR baseline consent enforcement provides documented consent expectation for imported lists. Multi-list opt-out granularity is per-list by default; configure global opt-out if business or regulatory expectations require unified suppression.
Testing your sendgomail.com unsubscribe link
- Send a test message to a controlled Gmail address you own via the sendgomail.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
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 Sendgo unsubscribe link (step by step)
- Open your campaign in the Sendgo editor.
- Add or edit a text block in the footer.
- Insert the merge tag
{UNSUBSCRIBE_URL}. - Wrap it in an anchor:
<a href="{UNSUBSCRIBE_URL}">Unsubscribe</a>. - Configure the sender identity under Settings > Sender identity > Footer template.
- Send a test to a seed address and verify the rendered link routes to the Sendgo-hosted preference page.
SMB feature set and GDPR baseline
Sendgo targets small business email marketing with straightforward SMB feature set. GDPR baseline consent enforcement provides documented consent expectation for imported lists. Multi-list opt-out granularity is per-list by default; configure global opt-out if business or regulatory expectations require unified suppression. Analogous to Grawt, Sendvilla, and Messaged SMB patterns.
RFC 8058 one-click headers
Sendgo 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 identity. SPF and DKIM records must be verified.
Small business use cases
Sendgo small business use cases include newsletter broadcasts, promotional campaigns, transactional notifications, and basic automation flows (welcome, abandoned cart, birthday). Interface prioritizes simplicity over feature depth. Suitable for SMBs starting email marketing or wanting a lower-cost alternative to feature-heavy platforms.
Frequently Asked Questions
What is the Sendgo unsubscribe tag?
The merge tag is {UNSUBSCRIBE_URL}. Sendgo replaces it at send time with a signed URL scoped to the subscriber.
Does Sendgo support one-click unsubscribe for Gmail and Yahoo?
Yes, automatically for authenticated domains. Sendgo injects List-Unsubscribe and List-Unsubscribe-Post headers on every marketing send.
Is Sendgo GDPR compliant?
Yes at baseline. Documented consent for imported lists required. Multi-list opt-out granularity per-list by default.
Does Sendgo support transactional email?
Basic transactional notifications. Configure transactional distinctly from marketing to preserve exemption boundary per most jurisdictions.
How does Sendgo compare to Sender.net or Grawt?
All three target SMB email marketing. Vendor choice depends on interface preferences, pricing, and specific feature 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.
About SMTPedia
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