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(Objective-C) Send HTML Email with CSS as Related Item using Content-LocationDemonstrates how to compose an HTML email with an external CSS file included as a related item and referenced by Content-Location. Some email clients display embedded (related) content best using CID's (Content-IDs), whereas other email clients display related content best by Content-Location. The choice you make may depend on the software used by the intended recipient of your email. (Does' the recipient read email on an iPhone? Android? Outlook? GMail? Thunderbird? etc.)
#import <CkoMailMan.h> #import <CkoEmail.h> #import <CkoStringBuilder.h> #import <NSString.h> // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // The mailman object is used for sending and receiving email. CkoMailMan *mailman = [[CkoMailMan alloc] init]; // Use your SMTP server hostname. This example uses office365, but it could be any SMTP server.. mailman.SmtpHost = @"outlook.office365.com"; mailman.SmtpPort = [NSNumber numberWithInt:587]; mailman.StartTLS = YES; // Set the SMTP login/password mailman.SmtpUsername = @"OFFICE365-SMTP-LOGIN"; mailman.SmtpPassword = @"OFFICE365-SMTP-PASSWORD"; // Create a new email object CkoEmail *email = [[CkoEmail alloc] init]; email.Subject = @"HTML Email with embedded CSS"; email.From = @"Chilkat Support <my-office365-user@mydomain.com>"; [email AddTo: @"Chilkat Support" emailAddress: @"support@chilkatsoft.com"]; CkoStringBuilder *sbCss = [[CkoStringBuilder alloc] init]; BOOL bCrlf = YES; [sbCss AppendLine: @"body {" crlf: bCrlf]; [sbCss AppendLine: @" background-color: powderblue;" crlf: bCrlf]; [sbCss AppendLine: @"}" crlf: bCrlf]; [sbCss AppendLine: @"h1 {" crlf: bCrlf]; [sbCss AppendLine: @" color: blue;" crlf: bCrlf]; [sbCss AppendLine: @"}" crlf: bCrlf]; [sbCss AppendLine: @"p {" crlf: bCrlf]; [sbCss AppendLine: @" color: red;" crlf: bCrlf]; [sbCss AppendLine: @"}" crlf: bCrlf]; // The filenameInHtml is what should exists within the HTML (in the href atribute) NSString *filenameInHtml = @"styles.css"; // Call AddRelatedString2 to use Content-Location. [email AddRelatedString2: filenameInHtml str: [sbCss GetAsString] charset: @"utf-8"]; CkoStringBuilder *sbHtml = [[CkoStringBuilder alloc] init]; [sbHtml AppendLine: @"<!DOCTYPE html>" crlf: bCrlf]; [sbHtml AppendLine: @"<html>" crlf: bCrlf]; [sbHtml AppendLine: @"<head>" crlf: bCrlf]; [sbHtml AppendLine: @" <link rel=\"stylesheet\" href=\"styles.css\">" crlf: bCrlf]; [sbHtml AppendLine: @"</head>" crlf: bCrlf]; [sbHtml AppendLine: @"<body>" crlf: bCrlf]; [sbHtml AppendLine: @"" crlf: bCrlf]; [sbHtml AppendLine: @"<h1>This is a heading</h1>" crlf: bCrlf]; [sbHtml AppendLine: @"<p>This is a paragraph.</p>" crlf: bCrlf]; [sbHtml AppendLine: @"" crlf: bCrlf]; [sbHtml AppendLine: @"</body>" crlf: bCrlf]; [sbHtml AppendLine: @"</html>" crlf: bCrlf]; [email SetHtmlBody: [sbHtml GetAsString]]; BOOL success = [mailman SendEmail: email]; if (success != YES) { NSLog(@"%@",mailman.LastErrorText); } else { NSLog(@"%@",@"Mail Sent!"); } |
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