MailKit 中 HTML 电子邮件正文的字体更改和样式

Font change and styling of HTML email body in MailKit

允许安全性较低的应用程序访问后here我能够使用带有内联样式的 gmail 给自己发送电子邮件。

using MailKit.Net.Smtp;   // for SmtpClient
using MimeKit;  // for MimeMessage, MailboxAddress and MailboxAddress

var message = new MimeMessage();
message.From.Add(new MailboxAddress("Hasan Yousef", "hasan@gmail.com"));
message.To.Add(new MailboxAddress("Personal", "hasan@gmail.com"));
message.To.Add(new MailboxAddress("Office", "hasan@offfice.com.sa"));
message.Subject = "How you doin'?";

string num = "13.5 million";

var bodyBuilder = new BodyBuilder();
bodyBuilder.HtmlBody = @"
<div style='background-color:black;color:white;padding:20px; box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);'>
            <h1 style='text-align: center; font-family: 'Sigmar One', cursive;'>Welcome to Ben's Minecraft</h1>
            <img src='https://www.bk-international.com/mahout_cms/project/themes/default/images/de/logo.png' alt='HTML5' style='width:84px;height:47px'><br>
            <a href='https://www.bk-international.com/de_en/'>Bischof + Klein</a>
            <h2>London</h2>
            <p>London is the capital city of England. 
            It is the most populous city in the United Kingdom, with a metropolitan area of over <span style='color:red'>
<i><b>" + num + 
@"</b></i></span>
inhabitants.</p>
            <p style='background-color:#ffc;color:black;'> Hope you liked the above</p>
            <table>
            <tr>
                <th>Name</th>
                <th>Description</th>
            </tr>
            <tr>
                <td>A</td>
                <td>Description of A</td>
            </tr>
            <tr>
                <td>B</td>
                <td>Description of B</td>
            </tr>
            </table>
            <ol>
                <li>London</li>
                <li>Paris</li>
                <li>Tokyo</li>
            </ol>
            <img src='https://www.bk-international.com/mahout_cms/project/themes/default/images/subhead.png' alt='HTML5' style='width:193px;height:9px'>
</div>         
            ";

message.Body = bodyBuilder.ToMessageBody();

/*       message.Body = new TextPart("plain")
        {
            Text = @"Hey Chandler,I just wanted to let you know that Monica and I were going to go play some paintball, you in?-- Joey"
        };
*/
using (var client = new SmtpClient())
{
      client.Connect("smtp.gmail.com", 587);
      client.AuthenticationMechanisms.Remove("XOAUTH2");  // due to enabling less secure apps access

      client.Authenticate("hasan@gmail.com", "myEmailPassward");
      client.Send(message);
      client.Disconnect(true);
}

我的问题是: 我怎么改字体,我试过在下面添加head脚本但是没有用。

<head>
   <link href='https://fonts.googleapis.com/css?family=Sigmar+One' rel='stylesheet' type='text/css'>
</head>

我注意到 gmail 中显示的字体与我的 outlook 中显示的字体完全不同,因此我需要统一字体以确保每个人无论使用何种电子邮件客户端都能以相同的方式阅读它。

根据 E.B. comment above, and refering to this and this 并考虑到 CSS 电子邮件在不同浏览器中的处理方式不同 and/or 电子邮件客户端,我发现最适合我的选择是使用内联样式下面:

<div style='background-color:black;color:white;padding:20px; font-family:Arial, Helvetica;color:#555555;font-size:12px;'>