Published by Linux Stewards · Last reviewed 23 August 2026
Contact Form Not Sending? Common Causes and Repair Costs
2 min readPopular fixes
A contact form that does not send is usually one of a handful of specific faults, and most of them are cheap to fix. A straightforward, well-scoped form repair typically starts from £29.
The reason it can feel mysterious is that a form spans several layers. A problem in any one of them stops the enquiry arriving even when the form looks fine on screen.
Where the fault usually sits
- Frontend — the form fields, validation or the submit button.
- API or backend — the code or service that receives the submission.
- Email delivery — SMTP, a sending service, or the mailbox that should receive it.
- DNS and authentication — SPF, DKIM and DMARC records that decide whether mail is accepted.
- Hosting or deployment — environment variables or configuration that changed.
- Spam filtering — the enquiry being silently quarantined.
Common causes
- A missing or mistyped recipient address or API key
- A sending service that was paused or hit its limit
- DNS or email-authentication records that are incomplete
- A form that validates but never actually submits
- A plugin or dependency update that broke the handler
- The form works but messages land in spam
Repair cost
- £29 — a simple, well-scoped fix such as a single broken setting, a wrong recipient, or a basic DNS record.
- Higher or quoted — multiple issues, a rebuild of the form logic, or delivery problems that need several rounds of testing.
We do not claim to recover lost revenue from a broken form. We can, however, confirm the form works and explain how to test it yourself going forward.
Testing after repair
A repair is not finished until a test submission actually arrives. We test the form, confirm the message is received (and not in spam), and check it still behaves on a phone.
What to send us
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