Xojo Plugin

Add a PFX Source to MailMan for Decryption

Demonstrates the Chilkat MailMan.AddPfxSourceFile method, which adds a PFX/PKCS#12 file to the MailMan object's internal list of sources used for locating certificates and private keys — for example, to decrypt S/MIME email downloaded from the server. The second argument is the PFX password. This example configures a POP3 connection and registers a PFX source.

Background: When MailMan downloads an encrypted (S/MIME) message, it needs the recipient's private key to decrypt it. On Windows and macOS the OS certificate stores are searched automatically, but when the key lives in a standalone PFX file — common on Linux or in server deployments — AddPfxSourceFile tells MailMan where to find it. A PFX bundles the certificate and its private key in one password-protected file.

Chilkat Xojo Plugin Downloads

Download Chilkat for Xojo Plugin

Xojo Plugin

Dim success As Boolean
success = False

//  Demonstrates the MailMan.AddPfxSourceFile method, which adds a PFX/PKCS#12 file to the
//  MailMan object's internal list of sources used for locating certificates and private
//  keys (for example, to decrypt downloaded S/MIME email).  The 2nd argument is the PFX
//  password.

Dim mailman As New Chilkat.MailMan

//  Configure the POP3 server connection.
mailman.MailHost = "pop.example.com"
mailman.MailPort = 995
mailman.PopSsl = True
mailman.PopUsername = "user@example.com"
mailman.PopPassword = "myPassword"

//  Provide a PFX so that encrypted emails downloaded from the server can be decrypted.

success = mailman.AddPfxSourceFile("qa_data/certs/decryption.pfx","pfx_password")
If (success = False) Then
    System.DebugLog(mailman.LastErrorText)
    Return
End If

System.DebugLog("Added the PFX certificate/private-key source.")

//  Note: The path "qa_data/certs/decryption.pfx" is a relative local filesystem path,
//  relative to the current working directory of the running application.