[ PRODUCT · P.02 ]
Skit Optin
Your own double opt-in for newsletters — branded confirmation mails from fully editable templates, consent proof per Art. 7 GDPR, provider of your choice. Theme-agnostic: runs on any WordPress theme, Divi 5 included, but never required.
features
✓ Branded confirmation mails from editable HTML templates
✓ Consent proof: wording, timestamp, IP, user agent
✓ MailerLite, Brevo, generic webhook — or local only + CSV
✓ Bypasses the providers’ unstyled or paid DOI mails
✓ Honeypot + rate limit + optional reCAPTCHA v3
✓ CSV export of all proofs from wp-admin
[ Problem · P.02 ]
Double opt-in that does not look like a stock mail
Anyone running a newsletter under GDPR needs a clean double opt-in. Leave it to the provider and you get unstyled stock mails — or pay extra for them. Build it yourself and you are writing token logic, consent proof and provider sync by hand.
The job is small but delicate: a branded confirmation mail, legally sound wording, expiring tokens, spam protection, list sync. Skit Optin handles exactly that step — the provider becomes just the address book.
solution
✓ Your own confirmation flow on your server — no provider DOI needed
✓ Mail design fully editable, four built-in templates
✓ Consent stored verifiably (Art. 7 GDPR)
✓ MailerLite, Brevo or webhook sync only after confirmation
[ Features · P.03 ]
Everything an opt-in needs
Confirmation mails
Full HTML mails you create, edit, duplicate and activate in wp-admin — with placeholders like {{confirm_url}}, live preview and test send. Four built-in designs as a starting point.
Consent proof
Every signup stores the exact consent wording shown, plus timestamp, IP and user agent — the standard evidence set for Art. 7 GDPR. CSV export included.
Provider sync
MailerLite or Brevo via API, a generic webhook (JSON POST, optionally HMAC-signed) for Zapier, Make, n8n and custom systems — or “local only” with CSV export.
Opt-in form
Add it via the [skit_optin_form] shortcode — lean markup with its own minimal styling. On Divi 5 sites it picks up the Global Colors (var(--gcid-*)) automatically.
Spam protection
Honeypot field, per-IP rate limit and optional reCAPTCHA v3 (invisible). Bots get a silent OK — no confirmation mail, no list entry.
Interest checkboxes
Optional product/topic checkboxes in the form — labels freely configurable. Selections are stored and mapped to configurable group IDs on MailerLite.
Token logic
Confirmation links with SHA-256 hash and configurable TTL. Stale signups expire automatically, failed provider syncs retry daily.
Redirects & legal pages
Redirect to your own thank-you/error pages after confirmation — or back home with a status parameter. Privacy and imprint links land in the mail automatically.
GDPR at the core
Consent wording editable and stored versioned per signup, no external consent services, all data stays on your server.
[ Compatibility · P.04 ]
Runs wherever WordPress runs
Skit Optin needs no page builder and no Divi — the form is a plain shortcode with its own minimal styling. On Divi 5 sites it picks up the Global Colors automatically.
compatible with
✓ Any WordPress theme — Divi 5 included, but never required
✓ MailerLite & Brevo natively — everything else via the generic webhook
✓ Caching plugins — the form works through the REST API
✓ Multilingual — all texts (form, mail, errors) freely editable
[ Live demo · P.05 ]
The opt-in is live on this site
The newsletter at the bottom of the homepage — and the confirmation mail you get there — runs on this plugin. The form, mail template and consent proof are live in action.
The signup is real — subscribers get the confirmation mail and land in the list.
reference
In production on diviskit.com — the waitlist newsletter including the confirmation flow runs on this plugin.
[ Docs · P.06 ]
Setup in four steps
Installation
Upload the plugin ZIP under Plugins → Add New and activate. Embed the form with [skit_optin_form] — the confirmation mail works with the default template right away.
Connect a provider
MailerLite: API token + group ID — keep “Double opt-in for API and integrations” off, the plugin does the DOI itself. Brevo: API key + list ID. Or a webhook URL — or “local only”.
Mail & texts
Subject, intro, button and footer of the confirmation mail are options; the layout comes from the active template. Consent text, form texts and thank-you/error redirects are freely configurable.
Support & changelog
Support via hello@diviskit.com. The changelog ships with the plugin (readme.txt); the source code is public on GitHub (GPL-2.0).
[ FAQ · P.07 ]
Frequently asked questions
Why not the provider’s own DOI?
Provider DOIs are unstyled, usually English and sometimes paid. Skit Optin sends your mail in your design and wording — the provider only sees the confirmed contact.
Do I need MailerLite or Brevo?
No. With “store locally” confirmed addresses stay in the WP table and export as CSV. For any other service there is the generic webhook.
Is the proof GDPR-compliant?
The plugin stores the shown consent text, timestamp, IP and user agent per signup — the usual evidence basis under Art. 7 GDPR. That does not replace legal advice on your wording.
What happens to sk-mailerlite-doi?
Existing installs migrate automatically — options, subscriber table, cron. Confirmation links already sent and the old
Newsletter
Updates zu neuen Releases, Features und Divi-5-Tipps — kein Spam.
Fast geschafft!
Fast geschafft! Bitte bestätige deine Anmeldung über den Link in der E-Mail, die wir dir gerade gesendet haben.
Do I need Divi?
No. The form is a shortcode with its own styling and runs on any theme. On Divi 5 sites it picks up the Global Colors automatically.
Does it replace legal advice?
No. Skit Optin provides the technical implementation — confirmation flow, evidence, provider sync. The legally sound wording of your consent remains your job.
[ Open Source · P.08 ]
Free. GPL. On GitHub.
Skit Optin is free software and part of the Diviskit suite. Grab the code from the repo — and join the newsletter below if you want release notes.