How to send custom HTML emails using Send Email Pipeline Item or Send Email Workflow Task

In the Pipeline Item: Send Email Pipeline Item and the Send Email Workflow Task you are able to use the body field to either send a plain text email or a formatted html.

HTML Template Example

The below example is an email template that looks good on all mail applications and is responsive on most. This uses Table formatting to look good on Windows desktop version of Outlook which does not support many css properties.

<!doctype html>
<html>
  <head>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>Simple Transactional Email</title>
    <style>
@media only screen and (max-width: 620px) {
  table.body h1 {
    font-size: 28px !important;
    margin-bottom: 10px !important;
  }

  table.body p,
table.body ul,
table.body ol,
table.body td,
table.body span,
table.body a {
    font-size: 16px !important;
  }

  table.body .wrapper,
table.body .article {
    padding: 10px !important;
  }

  table.body .content {
    padding: 0 !important;
  }

  table.body .container {
    padding: 0 !important;
    width: 100% !important;
  }

  table.body .main {
    border-left-width: 0 !important;
    border-radius: 0 !important;
    border-right-width: 0 !important;
  }

  table.body .btn table {
    width: 100% !important;
  }

  table.body .btn a {
    width: 100% !important;
  }

  table.body .img-responsive {
    height: auto !important;
    max-width: 100% !important;
    width: auto !important;
  }
}
@media all {
  .ExternalClass {
    width: 100%;
  }

  .ExternalClass,
.ExternalClass p,
.ExternalClass span,
.ExternalClass font,
.ExternalClass td,
.ExternalClass div {
    line-height: 100%;
  }

  .apple-link a {
    color: inherit !important;
    font-family: inherit !important;
    font-size: inherit !important;
    font-weight: inherit !important;
    line-height: inherit !important;
    text-decoration: none !important;
  }

  #MessageViewBody a {
    color: inherit;
    text-decoration: none;
    font-size: inherit;
    font-family: inherit;
    font-weight: inherit;
    line-height: inherit;
  }

  .btn-primary table td:hover {
    background-color: #34495e !important;
  }

  .btn-primary a:hover {
    background-color: #34495e !important;
    border-color: #34495e !important;
  }
}
</style>
  </head>
  <body style="font-family: sans-serif; -webkit-font-smoothing: antialiased; font-size: 14px; line-height: 1.4; margin: 0; padding: 0; -ms-text-size-adjust: 100%; -webkit-text-size-adjust: 100%;">
    <span class="preheader" style="color: transparent; display: none; height: 0; max-height: 0; max-width: 0; opacity: 0; overflow: hidden; mso-hide: all; visibility: hidden; width: 0;">This is preheader text. Some clients will show this text as a preview.</span>
    <table role="presentation" border="0" cellpadding="0" cellspacing="0" class="body" style="border-collapse: separate; mso-table-lspace: 0pt; mso-table-rspace: 0pt; background-color: #f6f6f6; width: 100%; padding: 25px 0 75px 0" width="100%" bgcolor="#f6f6f6">
      <tr>
        <td style="font-family: sans-serif; font-size: 14px; vertical-align: top;" valign="top">&nbsp;</td>
        <td class="container" style="font-family: sans-serif; font-size: 14px; vertical-align: top; display: block; max-width: 580px; padding: 10px; width: 580px; margin: 0 auto;" width="580" valign="top">
          <div class="content" style="box-sizing: border-box; display: block; margin: 0 auto; max-width: 580px; padding: 10px;">

            <!-- START CENTERED WHITE CONTAINER -->
            <table role="presentation" class="main" style="border-collapse: separate; mso-table-lspace: 0pt; mso-table-rspace: 0pt; background: #ffffff; border-radius: 3px; width: 100%;" width="100%">

              <!-- START MAIN CONTENT AREA -->
              <tr>
                <td class="wrapper" style="font-family: sans-serif; font-size: 14px; vertical-align: top; box-sizing: border-box; padding: 20px;" valign="top">
                  <table role="presentation" border="0" cellpadding="0" cellspacing="0" style="border-collapse: separate; mso-table-lspace: 0pt; mso-table-rspace: 0pt; width: 100%;" width="100%">
                    <tr>
                      <td style="font-family: sans-serif; font-size: 14px; vertical-align: top;" valign="top">
                        <p style="font-family: sans-serif; font-size: 14px; font-weight: normal; margin: 0; margin-bottom: 15px;">Hi there,</p>
                        <p style="font-family: sans-serif; font-size: 14px; font-weight: normal; margin: 0; margin-bottom: 15px;">Sometimes you just want to send a simple HTML email with a simple design and clear call to action. This is it.</p>
                        <table role="presentation" border="0" cellpadding="0" cellspacing="0" class="btn btn-primary" style="border-collapse: separate; mso-table-lspace: 0pt; mso-table-rspace: 0pt; box-sizing: border-box; width: 100%;" width="100%">
                          <tbody>
                            <tr>
                              <td align="left" style="font-family: sans-serif; font-size: 14px; vertical-align: top; padding-bottom: 15px;" valign="top">
                                <table role="presentation" border="0" cellpadding="0" cellspacing="0" style="border-collapse: separate; mso-table-lspace: 0pt; mso-table-rspace: 0pt; width: auto;">
                                  <tbody>
                                    <tr>
                                      <td style="font-family: sans-serif; font-size: 14px; vertical-align: top; border-radius: 5px; text-align: center; background-color: #3498db;" valign="top" align="center" bgcolor="#3498db"> <a href="http://htmlemail.io" target="_blank" style="border: solid 1px #3498db; border-radius: 5px; box-sizing: border-box; cursor: pointer; display: inline-block; font-size: 14px; font-weight: bold; margin: 0; padding: 12px 25px; text-decoration: none; text-transform: capitalize; background-color: #3498db; border-color: #3498db; color: #ffffff;">Call To Action</a> </td>
                                    </tr>
                                  </tbody>
                                </table>
                              </td>
                            </tr>
                          </tbody>
                        </table>                        
                      </td>
                    </tr>
                  </table>
                </td>
              </tr>

            <!-- END MAIN CONTENT AREA -->
            </table>
            <!-- END CENTERED WHITE CONTAINER -->
						
						 <!-- START FOOTER -->
            <div class="footer" style="clear: both; margin-top: 10px; text-align: center; width: 100%;">
              <table role="presentation" border="0" cellpadding="0" cellspacing="0" style="border-collapse: separate; mso-table-lspace: 0pt; mso-table-rspace: 0pt; width: 100%;" width="100%">
                <tr>
                  <td class="content-block" style="font-family: sans-serif; vertical-align: top; padding-bottom: 10px; padding-top: 10px; color: #999999; font-size: 12px; text-align: center;" valign="top" align="center">
                    <span class="apple-link" style="color: #999999; font-size: 12px; text-align: center;">Company Inc, 3 Road Road, City State Zip</span>
                    <br> Don't like these emails? <a href="./unsubscribe" style="text-decoration: underline; color: #999999; font-size: 12px; text-align: center;">Unsubscribe</a>.
                  </td>
                </tr>
              </table>
            </div>
            <!-- END FOOTER -->
						
          </div>
        </td>
        <td style="font-family: sans-serif; font-size: 14px; vertical-align: top;" valign="top">&nbsp;</td>
      </tr>
    </table>
  </body>
</html>
Email, pipeline, workflow
pmadden