Submit a labelled test
A small runner on your own host fills your Contact Form 7 form with invented data and a unique marker.
For WordPress sites and agencies
Know when your contact form stops delivering.
A form can say “thank you” while the email never arrives. SubmitBeacon sends a labelled test through Contact Form 7, checks the inbox, and can alert you when the test email does not arrive by the deadline.
Free plan: 1 site and 2 forms. No card required. Automatic checks use a runner on a computer or server you control.
ILLUSTRATIVE EXAMPLERequest a quote
Form accepted, email never arrived
- Test submission accepted
- No test email found by the deadline
- Incident opened, alert emailed
- Delivery recovered, recovery alert sent
How it works
Follow the test message all the way to the inbox
Look for the receipt
It searches a dedicated test inbox for that exact marker until the timeout you set.
Record the incident
No receipt becomes an incident with times and a reason, so you know which step to inspect first.
What you get
Evidence you can act on
Incident and recovery alerts
When email alerts are configured, get one incident message and one recovery message.
A clear dashboard
Sites, forms, results, incidents and a simple CSV export, in a workspace separate from every other account.
Runs on your side
Mailbox passwords stay on your host. SubmitBeacon receives only the technical result.
Before you start
Clear limits, no surprises
- Works with WordPress Contact Form 7. Forms with CAPTCHA, file uploads, logins or several steps are out of scope.
- The runner runs on a host you control, scheduled with your own cron or task scheduler.
- A missing test email means the check could not confirm delivery to the monitored inbox.
- SubmitBeacon never submits to a form without the permission you record for it.
WordPress delivery guides
Contact Form 7 emails not sending? Find where delivery stops
Diagnose Contact Form 7 email problems from the form response, WordPress mail logs and the destination inbox.
WordPress contact form not receiving emails? Protect your enquiries
Check the inbox, mail logs and submission history separately so your WordPress team can diagnose missing enquiries.
Set up Contact Form 7 email delivery monitoring
Set up a Contact Form 7 test inbox, verify one email manually, and schedule recurring checks with Node.js and the SubmitBeacon Runner.
Start with one WordPress site
Free for one site and two forms. Upgrade when you need more.