AFI
Sendy
Sendy is a self-hosted email newsletter application that uses Amazon SES for delivery. Advanced Form Integration subscribes contacts to your Sendy lists from WordPress form submissions.
What you’ll need
- An active Sendy installation.
- Your Sendy API Key and installation URL (see below).
- The Advanced Form Integration plugin installed and activated.
Get your Sendy API credentials
- Sign in to your Sendy installation.
- Go to Settings and copy your API Key.
- Note your Sendy installation URL.
- In WordPress, go to AFI → Settings → Sendy.
- Click Add Account, enter the URL and API Key, and give the account a name.
- Click Save.
Create the integration
- Go to AFI → Add New.
- Give the integration a name, for example
Form to Sendy. - Under Trigger, pick the form plugin and the specific form.
- Under Action → Platform, select Sendy (free) or Sendy [PRO].
- In Task, choose the desired task.
- Pick the saved account and enter the List ID.
- Map your form fields onto the fields listed below.
- Optional: open Conditional Logic to limit which submissions are sent.
- Click Save Integration.
Tasks supported
Subscribe To List (Free + Pro)
Subscribes a contact to the selected Sendy list via form-encoded POST to the /subscribe endpoint.
| Field | Field key | Required | Notes |
|---|---|---|---|
email |
Yes | ||
| Name | name |
No |
Pro features
The Pro integration extends the free version with custom fields, additional Sendy fields (country, GDPR, silent opt-in), and two extra tasks (Unsubscribe and Delete). Pro uses the same Sendy API Key and installation URL.
Custom fields and additional parameters
Pro exposes the following fields for the Subscribe task. Custom fields defined in your Sendy list can be mapped using the Custom Fields input, which accepts a key:value format.
| Field | Field key | Required | Notes |
|---|---|---|---|
email |
Yes | ||
| Name | name |
No | |
| Country | country |
No | |
| IP Address | ipaddress |
No | |
| Referrer | referrer |
No | |
| GDPR | gdpr |
No | Set to true for GDPR-compliant opt-in of EU users |
| Silent | silent |
No | Set to true to bypass double opt-in and subscribe as single opt-in |
| Custom Fields | custom_fields |
No | Use key:value format. Example: Birthday:2000-12-12. For multiple fields, separate with commas: Birthday:2000-12-12,City:London. Do not use spaces. You can use form field placeholders as values. |
Unsubscribe From List
Unsubscribes a contact from a Sendy list via the /unsubscribe endpoint. Only requires email and list ID.
Delete Subscriber
Deletes a subscriber entirely from a list via the /api/subscribers/delete.php endpoint. Only requires email and list ID.
Feature comparison
| Feature | Free | Pro |
|---|---|---|
| Subscribe to list | ✅ | ✅ |
| Standard fields (email, name) | ✅ | ✅ |
| Custom fields | No | ✅ |
| Country, IP, Referrer | No | ✅ |
| GDPR consent flag | No | ✅ |
| Silent (bypass double opt-in) | No | ✅ |
| Unsubscribe from list | No | ✅ |
| Delete subscriber | No | ✅ |
Conditional logic example
Only send data to Sendy when specific conditions are met. For example, add a condition on a form field to control which submissions are forwarded.
Troubleshooting
Nothing arrives in Sendy
Open AFI → Log and find the most recent entry. AFI stores the request URL, body, and raw response.
API credentials rejected
Verify your API Key and installation URL in AFI → Settings → Sendy. If the key was regenerated in Sendy, update it in AFI as well.