Xojo Plugin

SMTP Inspection

See more SMTP Examples

Examine an SMTP session to view all communications sent to the SMTP server. Xojo Plugin

Dim success As Boolean
success = False

Dim mailman As New Chilkat.MailMan

mailman.SmtpHost = "smtp.example.com"
mailman.SmtpUsername = "myUsername"
mailman.SmtpPassword = "myPassword"

mailman.SmtpPort = 465
mailman.StartTLS = True

Dim email As New Chilkat.Email

email.Subject = "This is a test"
email.Body = "This is a test"
email.From = "Alex <alex@example.com>"
success = email.AddTo("Christoph","christoph@example2.com")
success = email.AddBcc("Victor","victor@example3.com")

// Generate the MIME that is sent when SendEmail is called
Dim mimeStr As String
mimeStr = mailman.RenderToMime(email)
System.DebugLog(mimeStr)

success = mailman.SendEmail(email)
If (success = False) Then
    System.DebugLog(mailman.LastErrorText)
    Return
End If

success = mailman.CloseSmtpConnection()
If (success <> True) Then
    System.DebugLog("Connection to SMTP server not closed cleanly.")
End If

// Examine the SMTP session log.
System.DebugLog("----")
System.DebugLog("Smtp Session Log:")
System.DebugLog(mailman.SmtpSessionLog)

// ---------------------------------------------------
// Sample output:
// ---------------------------------------------------

// MIME-Version: 1.0
// Date: Fri, 06 Mar 2026 16:21:00 -0600
// Message-ID: <A5DC25990C93EC2676F4FBB2BB3BFA9EB34FF9D3@CHILKAT25>
// Content-Type: text/plain; charset=us-ascii; format=flowed
// Content-Transfer-Encoding: 7bit
// X-Priority: 3 (Normal)
// Subject: This is a test
// From: Alex <alex@example.com>
// To: Christoph <christoph@example2.com>
// Bcc: Victor <victor@example3.com>
// 
// This is a test
// ----
// Smtp Session Log:
// 220 smtp.example.com ESMTP Amazon WorkMail SMTP Service
// EHLO MYCOMPUTER<CRLF>
// 250-smtp.example.com
// 250-8BITMIME
// 250-AUTH PLAIN LOGIN
// 250 Ok
// AUTH LOGIN<CRLF>
// 334 VXNlcm5hbWU6
// YWRtaW5AY2hpbGthdHNvZnQuY29t<CRLF>
// 334 UGFzc3dvcmQ6
// {PasswordOrCredentials}
// 235 Authentication successful.
// MAIL FROM:<alex@example.com><CRLF>
// 250 Ok
// RCPT TO:<christoph@example2.com><CRLF>
// 250 Ok
// RCPT TO:<victor@example3.com><CRLF>
// 250 Ok
// DATA<CRLF>
// 354 End data with <CR><LF>.<CR><LF>
// {388 bytes} <--- The MIME source of the email (examined via RenderToMime) was sent here.
// <CRLF>.<CRLF>
// 250 Ok
// QUIT<CRLF>
// 221 Bye