Web applications often need to send emails for different purposes, from basic notifications to comprehensive marketing campaigns. Node.js provides modules like NodeMailer, with over three million weekly downloads, to handle email functionalities efficiently across various systems.
NodeMailer simplifies email sending in Node.js by requiring an SMTP server for email delivery. Users can utilize their own email provider or services like the WPOven Test SMTP Server for demonstration purposes, making it a versatile tool for managing email communications.
NodeMailer transporter objects in Node.js define the email service type, commonly SMTP, and require authentication credentials like user ID and password. The sendMail() method facilitates sending emails to single or multiple recipients, supporting both plain text and HTML message formats.
In addition to basic messaging features, NodeMailer offers advanced options like attachments for sending files. Users can include an array of objects specifying filenames and content, enhancing the functionality of email delivery for a more comprehensive user experience.
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