(Swift 3,4,5...) Send HTML Email with Embedded Image Loaded from Memory

Demonstrates how to compose an HTML email with an embedded image where the image data is loaded directly from memory.

Chilkat Downloads for the Swift Programming Language

MAC OS X (Cocoa) Objective-C/Swift Libs

iOS Objective-C/Swift Libs

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

    // First load image data into memory.
    // This example loads image data from a file.
    // However, your application could get the image data from any other source, such as
    // from a database.
    let fac = CkoFileAccess()!
    var imageBytes: NSData
    imageBytes = fac.readEntireFile("qa_data/jpg/starfish.jpg")

    // The mailman object is used for sending and receiving email.
    let mailman = CkoMailMan()!

    // Use your SMTP server hostname.  This example uses office365, but it could be any SMTP server..
    mailman.smtpHost = "outlook.office365.com"
    mailman.smtpPort = 587
    mailman.startTLS = true

    // Set the SMTP login/password
    mailman.smtpUsername = "OFFICE365-SMTP-LOGIN"
    mailman.smtpPassword = "OFFICE365-SMTP-PASSWORD"

    // Create a new email object
    let email = CkoEmail()!
    email.subject = "HTML Email with Image Loaded from In-Memory Bytes"
    email.from = "Chilkat Support <my-office365-user@mydomain.com>"
    email.add(to: "Chilkat Support", emailAddress: "support@chilkatsoft.com")

    var contentIdStarfish: String? = email.addRelatedData("starfish.jpg", in: imageBytes)
    if email.lastMethodSuccess != true {
        print("\(email.lastErrorText!)")
        return
    }

    // The src attribute for the image tag is set to the contentIdStarfish:
    let sbHtml = CkoStringBuilder()!
    sbHtml.append("<html><body><p>This is an HTML email with an embedded image.</p>")
    sbHtml.append("<p><img src=\"cid:CONTENT_ID_STARFISH\" /></p></body></html>")
    var numReplacements: Int = sbHtml.replace("CONTENT_ID_STARFISH", replacement: contentIdStarfish).intValue

    email.setHtmlBody(sbHtml.getAsString())

    var success: Bool = mailman.send(email)
    if success != true {
        print("\(mailman.lastErrorText!)")
    }
    else {
        print("Mail Sent!")
    }


}