(Xojo Plugin) Send HTML Email with Attachments

Demonstrates how to send an HTML email with file attachments.

Chilkat Xojo Plugin Download

Xojo Plugin for Windows, Linux, Mac OS X, and ARM, ARM64

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

Dim mailman As New Chilkat.MailMan

mailman.SmtpHost = "smtp.my-starttls-mail-server.com"

mailman.SmtpUsername = "MY-SMTP-USERNAME"
mailman.SmtpPassword = "MY-SMTP-PASSWORD"

mailman.StartTLS = True
mailman.SmtpPort = 587

// Create a new email object
Dim email As New Chilkat.Email
email.Subject = "Test SMTP API to Send HTML Email with Attachments"
email.From = "Joe Programmer <joe@my-starttls-mail-server.com>"
Dim success As Boolean
success = email.AddTo("Chilkat Support","support@chilkatsoft.com")

// Add a plain-text alternative body, which will likely never be seen.
// (It is shown if the receiving email client is incapable of displaying HTML email.)
success = email.AddPlainTextAlternativeBody("This is a plain-text alternative body...")

// Our HTML will include an image, so add the related image here.
Dim contentIdStarfish As String
contentIdStarfish = email.AddRelatedFile("qa_data/jpg/starfish.jpg")
If (email.LastMethodSuccess <> True) Then
    System.DebugLog(email.LastErrorText)
    Return
End If

// The src attribute for the image tag is set to the contentIdStarfish:
Dim sbHtml As New Chilkat.StringBuilder
success = sbHtml.Append("<html><body><p>This is an HTML email with an embedded image.</p>")
success = sbHtml.Append("<p><img src=""cid:CONTENT_ID_STARFISH"" /></p></body></html>")
Dim numReplacements As Int32
numReplacements = sbHtml.Replace("CONTENT_ID_STARFISH",contentIdStarfish)

success = email.AddHtmlAlternativeBody(sbHtml.GetAsString())

// Finally, add some attachments to the email.
// Add a file attachment.
Dim success As Boolean
success = email.AddFileAttachment2("qa_data/pdf/fishing.pdf","application/pdf")
If (success <> True) Then
    System.DebugLog(email.LastErrorText)
    Return
End If

// Add an attachment where the content is contained in a string.
Dim content As String
content = "This is the content of the 2nd attached file."
success = email.AddStringAttachment("someText.txt",content)

// Send the HTML email.
success = mailman.SendEmail(email)
If (success <> True) 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

System.DebugLog("HTML email with attachments sent!")