Secure your Contact Form 7 emails with this free SMTP plugin. It configures wp_mail() and features OAuth2, custom templates, and automated reports.
As of April 2026, SMTP for Contact Form 7 is a WordPress mail plugin with 1.0K+ active installations and a 4/5 rating from 2 reviews. It has been downloaded 7.0K+ times in total. Requires WordPress 5.5+ and PHP 7.1+. Available on WordPress.org since 2022. Actively maintained — updated within the last month. Downloads are down 78% this week. Support resolution rate: 50%. Top alternative: Flamingo.
WordPress uses PHPMailer to send mail from with your local mail server, but it can happen that your mail were not accepted by mail providers…
This can happen for several reasons, sometimes because the mail server is not configured or sometimes because the records DKIM, DMARC and SPF of the domain been set up correctly and so on…
Anyway you can avoid any problems by using an external SMTP server and sending mail with it!
✅ OAuth2 Authentication: Securely connect to Gmail and Microsoft Office 365 without needing to store passwords in your database or enable “less secure apps”.
✅ Per-Form Custom Templates: Wrap CF7 emails with beautiful templates. You can now select a specific custom template for each form directly from the plugin settings!
✅ Globa…
Works for me. Message didn’t get lost anymore.
i know all my setup correct but doest work this plugin
| WordPress | 5.5+ requiredTested up to 6.9.4 |
| PHP | 7.1+ required |
| Dependencies | contact-form-7 |
your-theme/cf7-smtp/).…and 2 more changes
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.