Rapidmail
Rapidmail is a German email-marketing platform popular with DACH-region small businesses for newsletter signups and lead capture. Advanced Form Integration sends form submissions to Rapidmail as new subscribers on a chosen recipient list.
What you’ll need
- An active Rapidmail account.
- A Rapidmail API Username and API Password (Profile → API → Create new API user).
- The Advanced Form Integration plugin installed and activated.
Get your Rapidmail API credentials
- Log in to your Rapidmail account.
- Go to Profile → API.
- Create a new API user.
- Copy the Username and Password.
Connect Rapidmail to AFI
- In WordPress, go to AFI → Settings.
- Enable Rapidmail and click Save Changes.
- Open the Rapidmail tab.
- Enter the Username and Password.
- Click Save Changes.
Create the integration
- Go to AFI → Add New.
- Configure the trigger.
- In Action → Platform, select Rapidmail.
- In Task, choose Subscribe to List.
- Pick the Recipient List: AFI loads your lists from Rapidmail automatically.
- Map the form fields:
- Email (required), First Name, Last Name.
- Any custom fields configured on the chosen list.
- Optional: configure Conditional Logic.
- Click Save Integration.

Tasks supported
Subscribe to List
Adds the form submitter as a subscriber on the chosen Rapidmail recipient list. Re-submissions update the existing subscriber rather than creating duplicates.
Conditional logic example
Subscribe to your “DE customers” Rapidmail list only when the form’s language field equals “DE”. Other languages go to language-specific lists via separate integrations.
Troubleshooting
Integration doesn’t fire
Open AFI → Log and find the most recent entry. The log shows the request payload sent to Rapidmail and the response received, usually pointing straight at the cause.
“Authentication failed”
Rapidmail’s API credentials are separate from your dashboard login. Make sure you’re using the API user’s username/password generated under Profile → API, not your account login.