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(Node.js) Send Encrypted Email to Multiple RecipientsDemonstrates how to create and send an S/MIME encrypted email to multiple recipients. The digital certificate of each recipient is required. The encrypting/sending process uses each recipient's digital certificate (which internally contains the public key). Each recipient decrypts the received email using his/her private key.
var os = require('os'); if (os.platform() == 'win32') { var chilkat = require('@chilkat/ck-node23-win64'); } else if (os.platform() == 'linux') { if (os.arch() == 'arm') { var chilkat = require('@chilkat/ck-node23-linux-arm'); } else if (os.arch() == 'arm64') { var chilkat = require('@chilkat/ck-node23-linux-arm64'); } else { var chilkat = require('@chilkat/ck-node23-linux-x64'); } } else if (os.platform() == 'darwin') { var chilkat = require('@chilkat/ck-node23-mac-universal'); } function chilkatExample() { // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // The mailman object is used for sending and receiving email. var mailman = new chilkat.MailMan(); // Set the SMTP server. mailman.SmtpHost = "smtp.mymailserver.com"; // Load each recipient's certificate into a Chilkat certificate object. // This example loads the certificates from files. However, the Chilkat // certificate object provides other means for loading certificates, // such as from in-memory PEM strings, or in-memory binary DER encoded form, etc. var cert1 = new chilkat.Cert(); var success = cert1.LoadFromFile("recipient1.cer"); if (success !== true) { console.log(cert1.LastErrorText); return; } var cert2 = new chilkat.Cert(); success = cert2.LoadFromFile("recipient2.cer"); if (success !== true) { console.log(cert2.LastErrorText); return; } var cert3 = new chilkat.Cert(); success = cert3.LoadFromFile("recipient3.cer"); if (success !== true) { console.log(cert3.LastErrorText); return; } // Create a new email object var email = new chilkat.Email(); email.Subject = "This email is encrypted and sent to 3 recipients"; email.Body = "This is an S/MIME encrypted mail sent to 3 recipients"; email.From = "Chilkat Support <support@chilkatsoft.com>"; // Make each of the certificates available for encrypting the email // by calling AddEncryptCert for each. success = email.AddEncryptCert(cert1); if (success == true) { success = email.AddEncryptCert(cert2); } if (success == true) { success = email.AddEncryptCert(cert3); } if (success !== true) { console.log(email.LastErrorText); return; } // Add 3 recipients to the email (2 TO addresses, and 1 CC address) success = email.AddTo("Recipient 1","admin@cknotes.com"); success = email.AddTo("Recipient 2","somebody001122@yahoo.com"); success = email.AddCC("Recipient 3","somebody123xyz@gmail.com"); // Indicate that the email is to be sent encrypted. email.SendEncrypted = true; // Send the encrypted email... success = mailman.SendEmail(email); if (success !== true) { console.log(mailman.LastErrorText); } else { console.log("Encrypted Email Sent!"); } } chilkatExample(); |
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