SMTPify

Sender Identity

• From Email Address — The address that appears in the From header. Leave blank to use the WordPress default ( wordpress@yourdomain.com ).
• From Name — The display name shown to recipients. Leave blank to use WordPress .
• Force Sender Identity — When checked, SMTPify overrides the From address and name set by any other plugin or theme, ensuring all outgoing mail uses your configured identity. Note: some SMTP providers (including Gmail, Outlook, Yahoo, and iCloud) ignore the From address and replace it with the authenticated account address. This setting works as expected with dedicated mail delivery services (such as SendGrid, Mailgun, and Amazon SES) and self-hosted SMTP servers.

Override Settings via wp-config.php

SMTPify supports fixing settings in code by defining constants in wp-config.php . When one of the following constants is defined, the corresponding setting is used instead of the value stored in the admin form:

• SMTPIFY_HOST
• SMTPIFY_PORT
• SMTPIFY_ENCRYPTION
• SMTPIFY_AUTH
• SMTPIFY_USER
• SMTPIFY_PASS
• SMTPIFY_FROM_EMAIL
• SMTPIFY_FROM_NAME
• SMTPIFY_FORCE_FROM

These definitions must be added manually to wp-config.php before the line that says /* That's all, stop editing! Happy publishing. */ .

Example:

php define( 'SMTPIFY_HOST', 'smtp.example.com' ); define( 'SMTPIFY_PORT', 587 ); define( 'SMTPIFY_ENCRYPTION', 'tls' ); define( 'SMTPIFY_AUTH', true ); define( 'SMTPIFY_USER', 'user@example.com' ); define( 'SMTPIFY_PASS', 'your-smtp-password' ); define( 'SMTPIFY_FROM_EMAIL', 'no-reply@example.com' ); define( 'SMTPIFY_FROM_NAME', 'My Site' ); define( 'SMTPIFY_FORCE_FROM', true );

When a setting is overridden this way, the field on the plugin settings page is shown as read-only and displays Overridden by ... in wp-config.php.

Test Email

Use the Send a Test Email section at the bottom of the settings page to send a live test to any address. The result, whether a success message or a detailed error from PHPMailer, is shown immediately on the page.

Mail Error Log

The Mail Error Log section lists the 20 most recent mail failures, each showing the date, recipient, and error message. Use Clear Log to delete all entries.

Using Gmail as Your SMTP Server

Gmail requires an App Password instead of your regular Google account password. App Passwords are available when two-factor authentication (2FA) is enabled, which is now mandatory for most Google accounts.

Step 1 — Create an App Password in Google

1. 01Sign in to your Google account and go to myaccount.google.com/apppasswords .
2. 02Enter a name to identify this password (e.g. WordPress ) and click Create .
3. 03Google displays a 16-character password. Copy it now, as it will not be shown again.

You can create as many App Passwords as you like under a single Google account. Creating one per environment (production, staging, development) is recommended: if one is compromised, you can revoke it without affecting the others.

Step 2 — Enter these values on the SMTPify settings page

• SMTP Host : smtp.gmail.com
• Encryption : TLS (STARTTLS)
• SMTP Port : 587
• Authentication : checked
• Username : your full Gmail address (e.g. youraddress@gmail.com )
• Password : the 16-character App Password from Step 1

Step 3 — Send a test email

Use the Send a Test Email section at the bottom of the settings page to confirm that mail is delivered correctly before relying on the configuration in production.

Notes

• Your regular Gmail password will not work; only App Passwords are accepted over SMTP.
• An App Password grants SMTP access to anyone who knows it, regardless of which application or server uses it. Store it securely and revoke it immediately at myaccount.google.com/apppasswords if you suspect it has been exposed.