Send inline image in email

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夕颜
夕颜 2020-11-22 11:09

Having an issue sending an image via email as an embedded image in the body. The image file shows as an attachment which is ok but the inline image portion just shows as a r

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12条回答
  • 2020-11-22 11:44

    You need to add the LinkedResource into an AlternateView

    AlternateView alternateView = AlternateView.CreateAlternateViewFromString("<h3>Client: " + data.client_id + " Has Sent You A Screenshot</h3>" +
                    @"<img src=""cid:{0}"" />", null, "text/html");
    alternateView.LinkedResources.Add(inline);
    mail.AlternateViews.Add(alternateView);
    
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  • 2020-11-22 11:46
        MailMessage mail = new MailMessage();
        //set the addresses
        mail.From = new MailAddress("userid@gmail.com");
        mail.To.Add("userid@gmail.com");
    
        //set the content
        mail.Subject = "Sucessfully Sent the HTML and Content of mail";
    
        //first we create the Plain Text part
        string plainText = "Non-HTML Plain Text Message for Non-HTML enable mode";
        AlternateView plainView = AlternateView.CreateAlternateViewFromString(plainText, null, "text/plain");
        XmlTextReader reader = new XmlTextReader(@"E:\HTMLPage.htm");
        string[] address = new string[30];
        string finalHtml = "";
        var i = -1;
        while (reader.Read())
        {
            if (reader.NodeType == XmlNodeType.Element)
            { // The node is an element.
                if (reader.AttributeCount <= 1)
                {
                    if (reader.Name == "img")
                    {
                        finalHtml += "<" + reader.Name;
                        while (reader.MoveToNextAttribute())
                        {
                            if (reader.Name == "src")
                            {
                                i++;
                                address[i] = reader.Value;
                                address[i] = address[i].Remove(0, 8);
                                finalHtml += " " + reader.Name + "=" + "cid:chartlogo" + i.ToString();
                            }
                            else
                            {
                                finalHtml += " " + reader.Name + "='" + reader.Value + "'";
                            }
                        }
                        finalHtml += ">";
                    }
                    else
                    {
                        finalHtml += "<" + reader.Name;
                        while (reader.MoveToNextAttribute())
                        {
                            finalHtml += " " + reader.Name + "='" + reader.Value + "'";
                        }
                        finalHtml += ">";
                    }
                }
    
            }
            else if (reader.NodeType == XmlNodeType.Text)
            { //Display the text in each element.
                finalHtml += reader.Value;
            }
            else if (reader.NodeType == XmlNodeType.EndElement)
            {
                //Display the end of the element.
                finalHtml += "</" + reader.Name;
                finalHtml += ">";
            }
    
        }
    
        AlternateView htmlView = AlternateView.CreateAlternateViewFromString(finalHtml, null, "text/html");
        LinkedResource[] logo = new LinkedResource[i + 1];
        for (int j = 0; j <= i; j++)
        {
            logo[j] = new LinkedResource(address[j]);
            logo[j].ContentId = "chartlogo" + j;
            htmlView.LinkedResources.Add(logo[j]);
        }
        mail.AlternateViews.Add(plainView);
        mail.AlternateViews.Add(htmlView);
        SmtpClient smtp = new SmtpClient();
        smtp.Host = "smtp.gmail.com";
        smtp.Port = 587;
        smtp.Credentials = new NetworkCredential(
            "userid@gmail.com", "Password");
        smtp.EnableSsl = true;
        Console.WriteLine();
        smtp.Send(mail);
    }
    
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  • 2020-11-22 11:50

    Try This.


    protected void Page_Load(object sender, EventArgs e)
            {
                string Themessage = @"<html>
                                  <body>
                                    <table width=""100%"">
                                    <tr>
                                        <td style=""font-style:arial; color:maroon; font-weight:bold"">
                                       Hi! <br>
                                        <img src=cid:myImageID>
                                        </td>
                                    </tr>
                                    </table>
                                    </body>
                                    </html>";
                sendHtmlEmail("from@gmail.com", "tomailaccount", Themessage, "Scoutfoto", "Test HTML Email", "smtp.gmail.com", 25);
            }
    

    protected void sendHtmlEmail(string from_Email, string to_Email, string body, string from_Name, string Subject, string SMTP_IP, Int32 SMTP_Server_Port)
            {
                //create an instance of new mail message
                MailMessage mail = new MailMessage();
    
                //set the HTML format to true
                mail.IsBodyHtml = true;
    
                //create Alrternative HTML view
                AlternateView htmlView = AlternateView.CreateAlternateViewFromString(body, null, "text/html");
    
                //Add Image
                LinkedResource theEmailImage = new LinkedResource("E:\\IMG_3332.jpg");
                theEmailImage.ContentId = "myImageID";
    
                //Add the Image to the Alternate view
                htmlView.LinkedResources.Add(theEmailImage);
    
                //Add view to the Email Message
                mail.AlternateViews.Add(htmlView);
    
                //set the "from email" address and specify a friendly 'from' name
                mail.From = new MailAddress(from_Email, from_Name);
    
                //set the "to" email address
                mail.To.Add(to_Email);
    
                //set the Email subject
                mail.Subject = Subject;
    
                //set the SMTP info
                System.Net.NetworkCredential cred = new System.Net.NetworkCredential("fromEmail@gmail.com", "fromEmail password");
                SmtpClient smtp = new SmtpClient("smtp.gmail.com", 587);
                smtp.EnableSsl = true;
                smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
                smtp.UseDefaultCredentials = false;
                smtp.Credentials = cred;
                //send the email
                smtp.Send(mail);
            }
    
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  • 2020-11-22 11:50

    The other solution is attaching the image as attachment and then referencing it html code using cid. HTML Code:

    <html>
    <head>
    </head>
    <body>
        <img width=100 height=100 id=""1"" src=""cid:Logo.jpg"">
    </body>
    </html>
    

    C# Code:

    EmailMessage email = new EmailMessage(service);
    email.Subject = "Email with Image";
    email.Body = new MessageBody(BodyType.HTML, html);
    email.ToRecipients.Add("abc@xyz.com");
    string file = @"C:\Users\acv\Pictures\Logo.jpg";
    email.Attachments.AddFileAttachment("Logo.jpg", file);
    email.Attachments[0].IsInline = true;
    email.Attachments[0].ContentId = "Logo.jpg";
    email.SendAndSaveCopy();
    
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  • 2020-11-22 11:51

    We all have our preferred coding styles. This is what I did:

    var pictures = new[]
    {
        new { id = Guid.NewGuid(), type = "image/jpeg", tag = "justme", path = @"C:\Pictures\JustMe.jpg" },
        new { id = Guid.NewGuid(), type = "image/jpeg", tag = "justme-bw", path = @"C:\Pictures\JustMe-BW.jpg" }
    }.ToList();
    
    var content = $@"
    <style type=""text/css"">
        body {{ font-family: Arial; font-size: 10pt; }}
    </style>
    <body>
    <h4>{DateTime.Now:ffffdd, MMMM d, yyyy h:mm:ss tt}</h4>
    <p>Some pictures</p>
    <div>
        <p>Color Picture</p>
        <img src=cid:{{justme}} />
    </div>
    <div>
        <p>Black and White Picture</p>
        <img src=cid:{{justme-bw}} />
    </div>
    <div>
        <p>Color Picture repeated</p>
        <img src=cid:{{justme}} />
    </div>
    </body>
    ";
    
    // Update content with picture guid
    pictures.ForEach(p => content = content.Replace($"{{{p.tag}}}", $"{p.id}"));
    // Create Alternate View
    var view = AlternateView.CreateAlternateViewFromString(content, Encoding.UTF8, MediaTypeNames.Text.Html);
    // Add the resources
    pictures.ForEach(p => view.LinkedResources.Add(new LinkedResource(p.path, p.type) { ContentId = p.id.ToString() }));
    
    using (var client = new SmtpClient()) // Set properties as needed or use config file
    using (MailMessage message = new MailMessage()
    {
        IsBodyHtml = true,
        BodyEncoding = Encoding.UTF8,
        Subject = "Picture Email",
        SubjectEncoding = Encoding.UTF8,
    })
    {
        message.AlternateViews.Add(view);
        message.From = new MailAddress("me@me.com");
        message.To.Add(new MailAddress("you@you.com"));
        client.Send(message);
    }
    
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  • 2020-11-22 11:54

    sending 2 images vb.net code convert for C# online converter.

    Public Function SendEmail(Optional ByVal p_AsHTML As Boolean = False, Optional ByVal p_themEmail As String = "") As Boolean
                Dim client As SmtpClient = New SmtpClient ''("FMSERVER.FMINNOVATIONS.COM.AU")
                'Dim fromAddress As MailAddress = New MailAddress(Me.FromEmail, "WSMenterprise")
                'Dim toAddress As MailAddress
                Try
                    Dim aMessage As New MailMessage()
                    '(New MailAddress(Me.FromEmail, "WSMenterprise"), New MailAddress(anAdd))
                    If _fromAddress IsNot Nothing Then
                        If _fromName IsNot Nothing Then
                            aMessage.From = New MailAddress(_fromAddress, _fromName)
                        Else
                            aMessage.From = New MailAddress(_fromAddress)
                        End If
                    End If
                    For Each anAdd As String In _To
                        aMessage.To.Add(New MailAddress(anAdd))
                    Next
                    For Each cc As String In _CC
                        aMessage.CC.Add(New MailAddress(cc))
                    Next
                    For Each bcc As String In _BCC
                        aMessage.Bcc.Add(New MailAddress(bcc))
                    Next
                    aMessage.Subject = _Subject
                    aMessage.IsBodyHtml = p_AsHTML
    
                    If _EmailLogo Is Nothing Then
                        aMessage.Body = _Body
                    Else
                        If p_themEmail.ToString().ToLower.Contains("dexus") Then
    
                           Dim htmlView = AlternateView.CreateAlternateViewFromString(_Body.ToString(), Nothing, "text/html")
                            Dim logo As New LinkedResource(_EmailLogo)
                            logo.ContentId = "Dexuslogo1"
                            Dim logo1 As New LinkedResource(_EmailLogo1)
                            logo1.ContentId = "Dexuslogo2"
                            htmlView.LinkedResources.Add(logo)
                            htmlView.LinkedResources.Add(logo1)
                            aMessage.AlternateViews.Add(htmlView)
    
                        Else
    
                            Dim htmlView = AlternateView.CreateAlternateViewFromString(_Body.ToString(), Nothing, "text/html")
                            Dim logo As New LinkedResource(_EmailLogo)
                            logo.ContentId = "companylogo"
                            htmlView.LinkedResources.Add(logo)
                            aMessage.AlternateViews.Add(htmlView)
                        End If
                    End If
    
                    For Each anAttach As Attachment In _Attachments
                        aMessage.Attachments.Add(anAttach)
                    Next
    
                    If _ReplyTo IsNot Nothing Then aMessage.ReplyToList.Add(New MailAddress(_ReplyTo))
                    client.Host = "smtpi.cbre.com.au"
                    client.UseDefaultCredentials = True
                    client.Send(aMessage)
                Catch exRecipUnk As SmtpFailedRecipientException
                    Return False
                Catch exSmtp As SmtpException
                    ''exSmtp.StatusCode
                    Return False
                Catch ex As Exception
                    Return False
                End Try
                Return True
            End Function
        If p_Gmap_code = "DE" Then
                    Dim p_Theme As New Theme("Dexus")
                    Dim passwordlink As String = ""
                    Dim DexuslogoImage1 As String = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Images\Dexus_Notice_Logo.png")
                    Dim DexuslogoImage2 As String = System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Images\DexusTenantNotice.png")
    
                    passwordlink = "<a href='" + p_Theme.TenantLoginPage + "?accesstype=email&te=" + a.Encrypt(p_TenantEmail) + "' target='_blank'>here.</a><br/>"
                    bodys += "<div align='Center'><table border='0' cellpadding='0' cellspacing='0'><tr style='height:50px;'><td width='623px' ></td><td valign='top' width='180'><p align='right'><a href='http://www.dexus.com/'><img border='0' height='50' src=cid:Dexuslogo1 width='174' alt=''/></a></p></td></tr><tr><td colspan='2' width='803' style='height:25px;'></td></tr> <tr><td width='623px'><p align='left' style='font-family:Arial;font-size:14pt;'><strong> Your Dexus Response Password is about to expire</strong></p></td>"
                    bodys += " <td width='180'><p align='right' style='font-family:Arial;font-size:10pt;'>" + DateTime.Now.ToString("dd/MM/yyyy") + " </p>"
                    bodys += "</td></tr><tr><td colspan='2' width='803' style='height:30px;'>  </td></tr> <tr>  <td colspan='2' width='803' style='font-family:Arial;font-size:10pt;'>"
                    bodys += "<p>" + wishes + " " + p_TenantName.Trim().ToString() + "</p>"
                    bodys += "</td></tr><tr><td colspan='2' width='803' style='height:25px;'></td> </tr><tr><td colspan='2' width='803' style='font-family:Arial;font-size:10pt;'>"
                    bodys += "Your Dexus Response password is about to expire in " + p_remaindays.ToString() + " days.<br /><br /> To reset your password and update your details, please click " + passwordlink.ToString() + "<br /><br />Please note that if you do not update your password by " + p_date + ",then your account will be set to inactive and you will not be able to access Dexus Response.</br></br>Please contact Dexus Response if you require assistance in accessing the portal.</p></td>" 'edit
                    bodys += " </tr><tr><td colspan='2' width='803' style='height:30px;'></td></tr><tr><td colspan='2' width='803'><table align='left' border='0' cellpadding='0' cellspacing='0'><tr><td width='802' style='font-family:Arial;font-size:10pt;'><p><strong>Dexus Response</strong></p></td></tr><tr><td width='802' style='font-family:Arial;font-size:10pt;'><p><a href='mailto:property.services@dexusfm.com'>property.services@dexusfm.com</a> <strong>|</strong> 1300 339 870 <strong>|</strong> <a href='https://response.dexus.com/'>response.dexus.com</a></p></td></tr></table></td></tr><tr><td colspan='2' width='803' style='height:15px;'></td></tr><tr> <td colspan='2' width='803'><p> </p><p><a href='https://response.dexus.com/' border='0' target='_blank'><img border='0' height='133'"
                    bodys += "src=cid:Dexuslogo2 alt='' width='800' /></a></p></td></tr><tr><td colspan='2' width='803' style='height:10px;'></td></tr><tr><td colspan='2' width='803' style='font-family:Arial;font-size:10pt;'><p><a href='http://www.dexus.com/who-we-are/terms-and-conditions' style=' color:#000000;'>Terms and Conditions</a><strong> | </strong><a href='http://www.dexus.com/who-we-are/privacy-policy' style=' color:#000000;'> Privacy Policy</a></p></td></tr><tr><td colspan='2' width='803' style='height:40px;'></td></tr><tr><td colspan='2' width='803'><p></p></td></tr><tr><td colspan='2' width='803' style='height:10px;'></td></tr><tr></tr><tr><td colspan='2' width='803' style='height:20px;'></td></tr></table></div>"
    
                    email = New Common.Email(emailHeading, bodys, p_Theme.EmailFrom, DexuslogoImage1, DexuslogoImage2)
                    email.ToEmail = p_TenantEmail
                    email.SendEmail(True, p_Theme.EmailFrom)
    
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