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SMTP Mailer
Replaces WordPress’s unreliable PHP mail() function with authenticated SMTP delivery. Supports Gmail, Outlook, Amazon SES, Mailgun, and any standard SMTP server. Includes a test-send button and a persistent activity log showing every outgoing message with delivery status.
📧 Stop Losing Emails to the Spam Folder
By default, WordPress sends email via PHP’s mail() function. Email sent this way – directly from your server’s IP with no authentication – is rejected by Gmail, Outlook, and most modern mail services, or silently dropped into spam. Authenticated SMTP delivery solves this permanently.
Once configured, all WordPress email goes through your SMTP server: WooCommerce order confirmations, password reset links, admin notifications, CloudScale scan alerts, 2FA OTP codes, and any plugin that calls wp_mail(). No code changes required anywhere else.
Supported providers
- Gmail (Google Workspace): use an App Password (not your account password). Enable 2-Step Verification in your Google account first, then go to Google Account → Security → App passwords → create one for “Mail”. Host:
smtp.gmail.com, Port:587, Encryption: TLS. - Outlook / Microsoft 365: Host:
smtp.office365.com, Port:587, Encryption: TLS. Use your full email address as the username. - Amazon SES: create SMTP credentials in the SES console (IAM user with SMTP permissions). Host varies by region, e.g.
email-smtp.us-east-1.amazonaws.com, Port:587. - Mailgun, SendGrid, Postmark: use the SMTP relay settings provided in your account dashboard. All use standard SMTP with API key as the password.
- Custom SMTP server: enter your host, port, encryption type, username, and password directly.
Test before you save
Use the Send Test Email button to confirm delivery before saving. The test sends a real email to your WordPress admin address. Check the Email Log tab if you don’t receive it within a few minutes – the log shows whether the send was attempted and what error (if any) was returned.