WordPress SMTP Mailer Plugins

An SMTP mailer plugin helps you configure your WordPress site to use an external email server for sending emails. By doing so, it improves the chances of your emails:

• reaching recipients’ inboxes, and 
• not being marked as spam. 

This is especially important for transactional emails, such as registration confirmations, password resets, and notifications, which are crucial for maintaining effective communication with your users.

Mailer plugins use the SMTP protocol (Simple Mail Transfer Protocol) or other methods (APIs) to reach servers that are intended for sending emails and which are trusted by other mail servers to reject malicious senders and spam. SMTP is an industry-standard protocol for sending emails across the internet, ensuring better deliverability and reliability compared to the WordPress core’s built-in capabilities.

These plugins typically feature:

• Easy configuration: An easy-to-use interface for configuring your SMTP server settings, including server address, port, encryption method (SSL/TLS), username, and password.
• Multiple email service providers: They support various email service providers, such as Gmail, SendGrid, Amazon SES, and more. Some plugins even offer pre-configured settings for popular providers to make setup easier.
• Authentication support: These plugins provide support for different authentication methods, including OAuth 2.0 for services like Gmail, which enhances security. They generally support various encryption types (SSL, TLS) to ensure a secure connection to the mail server.
• Email test functionality: A built-in email testing feature allows you to send a test email to ensure that your SMTP settings are correct and your emails are being delivered successfully.
• Logging: Many plugins provide logging features to track sent emails, errors, and other important information, helping you identify and resolve issues.
• Custom sender information: You can set custom “From” name and email address for outgoing emails, which can improve email deliverability and make your emails appear more professional.
• Compatibility: These plugins are designed to work seamlessly with WordPress and popular form builder plugins, ensuring smooth email delivery across your site.