WhyPHPmail()failsonsharedhosting
Many hosts block or rate-limit mail() - SMTP through Google Workspace or SendGrid is more reliable.
SPF/DKIM on your domain affects deliverability even when WordPress ' sends successfully.'
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WordPressformnotsendingemail?SMTP&pluginfixes
Contact form looks fine but nothing in the inbox - check SMTP, spam, and plugin conflicts yourself first.
By VIQQ StudioUpdated June 20265 min read
Key takeaways
- Test SMTP delivery
- Rule out plugin conflicts
- Restore CRM routing
Try it yourself first
Forms fail silently more often than they break visibly. Check delivery before redesigning the page.
You find out forms are broken when leads stop - not when you launch. The form looks fine; nothing hits the inbox.
Walk through delivery, SMTP, and conflicts before assuming you need a new website.
DIYsteps
1Step 1 - Confirm it's delivery, not the form UI
- Submit a test with a unique subject line - check spam and Promotions tabs.
- Install an SMTP plugin (e.g. WP Mail SMTP) and send a test email from WordPress.
- Check hosting mail logs - shared hosts often throttle or block PHP mail().
2Step 2 - Plugin and theme conflicts
- Switch to a default theme briefly on staging - submit again.
- Disable security and caching plugins that might strip form POST data.
- Update Contact Form 7, WPForms, or Gravity Forms - note version before/after.
3Step 3 - Routing to CRM
- If Zapier/webhook fails, test the form without the integration first.
- Verify the notification email isn't still pointing to an old @gmail you don't monitor.
Commonquestions
Do form plugins store submissions?
Some do (Flamingo, WPForms entries) - check there before assuming total data loss.
Still broken?
Getascopedrepair-norebuildpitch
Stop DIY if: SMTP is configured but mail still fails, or you need CRM/Zapier routing restored - that's a scoped forms fix, not a new plugin trial.
We trace SMTP, plugin conflicts, spam filters, and CRM handoff - leads should hit your inbox or pipeline.
