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(Go) Convert HTML Web Page to Email and SendConverts an HTML page at a URL into an email with embedded images and sends it.
// This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. mailman := chilkat.NewMailMan() // The MHT component can be used to convert an HTML page // from a URL, file, or in-memory HTML into an email // with embedded images and style sheets. mht := chilkat.NewMht() email := chilkat.NewEmail() // There are two ways of embedding images in emails: with CIDs // and without. When using CIDs, the IMG SRC attributes use // urls that begin with "cid:" and the corresponding image // embedded within the email includes a Content-ID header field. // When not using CIDs, the IMG SRC attribute can have a URL, // path, etc. and the corresponding image embedded within // the email has a matching Content-Location header field. // When testing with GMail, if CIDs are used the email will // be displayed with images blocked (by default) unless // the user allows them to be displayed. Without CIDs, // the images are automatically displayed. // When testing with Eudora, Mozilla Thunderbird, and Outlook Express, // embedded images display correctly with our without CIDs. // When testing with Yahoo! Mail, embedded images display OK. // However, the Yahoo! Mail user has the option of blocking // images. If this is turned on, the CID images will still // display correctly even though images are blocked. Why? // It's because when viewing the email there is no external // HTTP request to fetch an image. Therefore, a spammer // cannot get an indication that you've read the email. // However, if CIDs are not used, the images are blocked by // any Yahoo! Mail user that has image blocking turned on -- // even though the images are embedded. // I haven't tested Hotmail yet... // Regardless, there is no perfect solution. If CIDs are used, // GMail users may block your embedded images, if CIDs are not // used, Yahoo! Mail users may block your embedded images. // I recommend setting using CIDs. This is what Mozilla Thunderbird // does by default, and it's the more clear an unambiguous way // to indicate that images are indeed embedded. mht.SetUseCids(true) emlStr := mht.GetEML("http://www.bonairefishing.com/") if mht.LastMethodSuccess() != true { fmt.Println(mht.LastErrorText()) mailman.DisposeMailMan() mht.DisposeMht() email.DisposeEmail() return } success := email.SetFromMimeText(*emlStr) if success != true { fmt.Println(email.LastErrorText()) mailman.DisposeMailMan() mht.DisposeMht() email.DisposeEmail() return } email.SetSubject("Test HTML email") // This example is tested in: // Outlook 2000, Eudora 7, Mozilla Thunderbird 1.5.0.9, Outlook Express 6, GMail, Yahoo Mail success = email.AddTo("Chilkat Support","support@chilkatsoft.com") // Note: Chilkat does not regularly check our GMail and Yahoo // email accounts. Please send support email to support@chilkatsoft.com success = email.AddTo("Chilkat on Yahoo","chilkat_software@yahoo.com") success = email.AddTo("Chilkat on GMail","chilkat.support@gmail.com") email.SetFrom("chilkat@live.com") // Send email using smtp.live.com mailman.SetSmtpHost("smtp.live.com") mailman.SetSmtpUsername("chilkat@live.com") mailman.SetSmtpPassword("myPassword") mailman.SetSmtpPort(587) mailman.SetStartTLS(true) success = mailman.SendEmail(email) if success != true { fmt.Println(mailman.LastErrorText()) mailman.DisposeMailMan() mht.DisposeMht() email.DisposeEmail() return } success = mailman.CloseSmtpConnection() if success != true { fmt.Println(mailman.LastErrorText()) mailman.DisposeMailMan() mht.DisposeMht() email.DisposeEmail() return } fmt.Println("HTML Email Sent!") mailman.DisposeMailMan() mht.DisposeMht() email.DisposeEmail() |
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