AuthenticSender

1. 01Upload the authenticsender folder to the /wp-content/plugins/ directory.
2. 02Activate the plugin through the Plugins menu in WordPress.
3. 03Go to Settings > AuthenticSender and choose SMTP, UseSend API, or Resend API.
4. 04Open the Test Email tab and send a test message to verify everything is working.

Do I need to disable WordPress’ default mail() function?

No. AuthenticSender hooks into PHPMailer (SMTP) or pre_wp_mail (UseSend and Resend APIs) automatically. When SMTP is enabled or an API delivery method is selected, the default mail() function is bypassed; otherwise it is restored.

Can I use this with Gmail?

Yes. Select Gmail from the Provider Preset dropdown, then enter your Google account username and an App Password (not your regular Google password). App Passwords are generated at https://myaccount.google.com/apppasswords

How do I use UseSend?

Two options:

1. 01SMTP — Delivery Method = SMTP, Provider Preset = UseSend, username usesend , password = your API key.
2. 02API — Delivery Method = UseSend API, enter your API key, choose Cloud or Self-hosted (and your instance URL).

How do I use Resend?

Two options:

1. 03SMTP — Delivery Method = SMTP, Provider Preset = Resend, username resend , password = your API key.
2. 04API — Delivery Method = Resend API, then enter your Resend API key.

Where are the email logs stored?

Logs are stored in the WordPress database. No files are written to the filesystem. You can view, filter, and clear the log from the Email Log tab in the plugin settings.

Does the plugin log all emails sent by WordPress?

Yes, when logging is enabled. This includes password reset emails, WooCommerce order notifications, contact form submissions, and any other email routed through wp_mail() .

What happens if I disable logging after entries already exist?

Existing entries are preserved. No new entries are written while logging is off. You can re-enable logging at any time or clear the existing log manually.

Is my SMTP password stored securely?

Yes. SMTP passwords and API keys are encrypted with AES-256-GCM using a key derived from your WordPress AUTH_KEY and SECURE_AUTH_KEY constants before being written to the database.

When do From, Reply-To, and BCC apply?

They apply when SMTP is enabled or an API delivery method is selected. Turn on Force Identity in Sender Identity if you want those overrides while using WordPress default mail.