Question

如何使用nodemailer将邮件发送到存储在数据库（mongodb）中的多个收件人？目前我发送给单个收件人。但我无法弄清楚如何将邮件发送给多个邮件ID存储在mongodb中的人。

如果有人知道答案，请回复。提前谢谢你：）

Answer 1

使用mongodb disting为您要发送电子邮件的所有email_address获取数组，并将该数组传递给nodemailer。

const nodemailer = require('nodemailer');

// create reusable transporter object using the default SMTP transport
let transporter = nodemailer.createTransport({
    service: 'gmail',
    auth: {
        user: 'gmail.user@gmail.com',
        pass: 'yourpass'
    }
});

let email_arr = db.users.distinct( "email", { /* Any condition you want to put*/ } )

let mailOptions = {
    from: "test@example.com", // sender address
    subject: "Hello ✔", // Subject line
    text: "Hello This is an auto generated Email for testing  from node please ignore it", // plaintext body
    to: email_arr
}


// send mail with defined transport object
transporter.sendMail(mailOptions, (error, info) {
    if (error) {
        return console.log(error);
    }
    console.log('Message %s sent: %s', info.messageId, info.response);
});

使用nodemailer将邮件发送给多个收件人

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