LynBro Plugins
/ SMTP Mailer
LynBro Plugins
/ SMTP Mailer
Send every email through your own SMTP server. When something fails, the backup connection delivers it in the same request, you get an alert, and the email waits in the log for one-click resend.
Free forever, nothing locked. Talks only to the SMTP server you choose — never to LynBro.
emails lost without a trace, once the log and backup are on.
Email log, resend, backup connection and alerts are paid extras in the best-known SMTP plugin. Here they are simply there.
The log keeps message content only for failed emails, so password-reset links of a working site never sit in your database.
The test shows the SMTP conversation with the password hidden, explains the usual errors and checks blocked ports, SPF and DMARC.
No "Pro" tier, no nag screens. The features other plugins paywall are here from day one.
Gmail, Microsoft 365, Brevo, SendGrid, Mailgun, SES, Postmark, Simply.com, one.com…
Or encrypted with your site keys; never shown, never exported.
Send everything to one address, or send nothing and only log.
Force From email and name separately, default Reply-To, Return-Path.
Host and sender from WP Mail SMTP, FluentSMTP, Easy WP SMTP, Post SMTP.
wp lynbro-smtp test, log, resend, purge; a Site Health check.
Compared with the free versions of the popular SMTP plugins (November 2026).
| Feature | Lynbro SMTP Mailer | WP Mail SMTP free | Easy WP SMTP free |
|---|---|---|---|
| Any SMTP server, provider presets | ✓ | ✓ | ✓ |
| Email log with resend | ✓ | Pro | Pro |
| Backup connection | ✓ | Pro | — |
| Failure alerts | ✓ | Pro | — |
| Staging: redirect / do not send | ✓ | — | — |
| No ads, nags or upsell emails | ✓ | — | — |
Your host or mailbox works for small sites. For shops, a sending service (Brevo, Mailgun EU, Amazon SES, Postmark) delivers better. All work with plain SMTP.
Both need an app password when two-step sign-in is on; Microsoft 365 also needs Authenticated SMTP enabled. The Test tab tells you which it is.
With a backup connection the email goes out through the backup at once. Without one it is logged as failed with its content kept, and you resend it when the server is back.
It is encrypted with your site keys, never shown again, never logged and left out of the settings export. Or define it in wp-config.php and keep it out of the database.
Yes: send every email to your own address (Cc and Bcc removed), or switch sending off and only log.
No. The plugin talks only to the SMTP server you choose, and to a webhook only if you add one.