(.NET Core C#) Add Base64 Image to HTML Email

Demonstrates how to add an image "file" where the binary data for the image is in base64 string form.

Note: This example requires Chilkat v9.5.0.65 or greater.

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// Note: This example requires Chilkat v9.5.0.65 or greater.

// 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.
Chilkat.MailMan mailman = new Chilkat.MailMan();

mailman.SmtpHost = "outlook.office365.com";
mailman.SmtpPort = 587;
mailman.StartTLS = true;

// Set the SMTP login/password
mailman.SmtpUsername = "OFFICE365-SMTP-LOGIN";
mailman.SmtpPassword = "OFFICE365-SMTP-PASSWORD";

// Create a new email object
Chilkat.Email email = new Chilkat.Email();
email.Subject = "Testing for Chilkat API...";
email.Body = "Testing for Chilkat API...";
email.From = "Chilkat Support <my-office365-user@mydomain.com>";
email.AddTo("Chilkat Support","support@chilkatsoft.com");

// Load Base64 image data into a StringBuilder.
Chilkat.StringBuilder sb = new Chilkat.StringBuilder();
bool bCrlf = true;
sb.AppendLine("/9j/4AAQSkZJRgABAgEASABIAAD/7Q18UGhvdG9zaG9wIDMuMAA4QklNA+0AAAAAABAASAAAAAEA",bCrlf);
sb.AppendLine("AQBIAAAAAQABOEJJTQPzAAAAAAAIAAAAAAAAAAE4QklNBAoAAAAAAAEAADhCSU0nEAAAAAAACgAB",bCrlf);
sb.AppendLine("AAAAAAAAAAI4QklNA/UAAAAAAEgAL2ZmAAEAbGZmAAYAAAAAAAEAL2ZmAAEAoZmaAAYAAAAAAAEA",bCrlf);
sb.AppendLine("MgAAAAEAWgAAAAYAAAAAAAEANQAAAAEALQAAAAYAAAAAAAE4QklNBBQAAAAAAAQAAAABOEJJTQQM",bCrlf);
sb.AppendLine("AAAAAAyTAAAAAQAAAIAAAACAAAABgAAAwAAAAAx3ABgAAf/Y/+AAEEpGSUYAAQIBAEgASAAA//4A",bCrlf);
sb.AppendLine("J0ZpbGUgd3JpdHRlbiBieSBBZG9iZSBQaG90b3Nob3CoIDQuMAD/7gAOQWRvYmUAZIAAAAAB/9sA",bCrlf);
sb.AppendLine("hAAMCAgICQgMCQkMEQsKCxEVDwwMDxUYExMVExMYEQwMDAwMDBEMDAwMDAwMDAwMDAwMDAwMDAwM",bCrlf);
sb.AppendLine("DAwMDAwMDAwMAQ0LCw0ODRAODhAUDg4OFBQODg4OFBEMDAwMDBERDAwMDAwMEQwMDAwMDAwMDAwM",bCrlf);
sb.AppendLine("DAwMDAwMDAwMDAwMDAwMDAz/wAARCACAAIADASIAAhEBAxEB/90ABAAI/8QBPwAAAQUBAQEBAQEA",bCrlf);
sb.AppendLine("AAAAAAAAAwABAgQFBgcICQoLAQABBQEBAQEBAQAAAAAAAAABAAIDBAUGBwgJCgsQAAEEAQMCBAIF",bCrlf);
sb.AppendLine("BwYIBQMMMwEAAhEDBCESMQVBUWETInGBMgYUkaGxQiMkFVLBYjM0coLRQwclklPw4fFjczUWorKD",bCrlf);
sb.AppendLine("JkSTVGRFwqN0NhfSVeJl8rOEw9N14/NGJ5SkhbSVxNTk9KW1xdXl9VZmdoaWprbG1ub2N0dXZ3eH",bCrlf);
sb.AppendLine("l6e3x9fn9xEAAgIBAgQEAwQFBgcHBgU1AQACEQMhMRIEQVFhcSITBTKBkRShsUIjwVLR8DMkYuFy",bCrlf);
sb.AppendLine("gpJDUxVjczTxJQYWorKDByY1wtJEk1SjF2RFVTZ0ZeLys4TD03Xj80aUpIW0lcTU5PSltcXV5fVW",bCrlf);
sb.AppendLine("ZnaGlqa2xtbm9ic3R1dnd4eXp7fH/9oADAMBAAIRAxEAPwD1VJJJJSkkkklKSSSSUpJJMSACTwEl",bCrlf);
sb.AppendLine("KJA5MJAg8arnuqdbta4+hJaCQ0AgTHfe8tY3/OUuh9bsybfRu0d2Ez/0x7Xf2FWhzuGeY4Ym5DTw",bCrlf);
sb.AppendLine("sM8uWyDH7h27dXoEkklZYFJJJJKUkkkkp//Q9VSSSSUpJJJJSkkkklKVPqt5pxHR9J/tbHmriw/r",bCrlf);
sb.AppendLine("Dk/QpaYI9x+P5qh5nKMWHJP92Jrz6MuCHHkiPG3l+oZTq2uL7HUkHYwCptnOm24n6KX1eut/aoBe",bCrlf);
sb.AppendLine("XxtklpbyN3tb9Db/AFULMIcNG2XO3S9oY6IHtJ9R7n1+p7vzq0X6sML+pudtexu/2tsMuho2rE+H",bCrlf);
sb.AppendLine("C8sD1uyaH/o7rZ6GDJ5PobfohOmHATroXEUkkkkpSSSSSn//0fVCsLq/XjiZLcZhDXuMCSAfj7y1",bCrlf);
sb.AppendLine("bq5D64dLvLvtmO3c5oOkSdR+bq3a5Qc17vtH2jwy7s/KjGcoGTY925T1zKkS9rpbvhwj2n6Lv7Sv",bCrlf);
sb.AppendLine("4/XGED127Afzxq371weL1S5zrWhj3MrAFr3CXNaxrf0TI2saz1HfSWvh5rb9rK3erLQHMA9rCfe2",bCrlf);
sb.AppendLine("v+Vbt+msSPxHnMB/WEZIj5rHqr+9H/um/k5PGRtXjF7aq6q1u6twcD4Ii5inJvx9a7SNfonVv9VX",bCrlf);
sb.AppendLine("cfrpiL2THLma/gtPl/inK5q9fBL92fpaM+VmPl9Q/F1ci0U0vsPDRK5fLyK773vtkh57dgPo8q91",bCrlf);
sb.AppendLine("XrNVtPpUgw76RIgx5LA9V9hcGAuOob8fzdPcqfxfmY5IjDjleolMxOn9UW2uU5cxBlIEE/k0utua",bCrlf);
sb.AppendLine("3I9+zbUyGNb7HTz7y0v9Rn9lXvqcA/KDh3kmPM/Bv0formus32G5zGEEuJ95c50iezrfc3/MXR/U",bCrlf);
sb.AppendLine("UPrewXRLgdseEo/DsfDLFZ1/sZ+ZFcvPfSnv0kkltOMpJJJJSkkkklP/0vVUO6llzCx4kFESSU8X",bCrlf);
sb.AppendLine("136py512NInnZoY52rmrKMzBtLLA5nIN7Xlpj2hrH7o2+xm32r1d7GvEOEgrE6z9XcfMrc5jQHdx",bCrlf);
sb.AppendLine("2Kp8xycZgmIqXb9FvctzpiRHJrHa+oeTxeqtftpvHpMaJNz/AHHafosayvd/J/tq4CHNL2n2nVjj",bCrlf);
sb.AppendLine("I9vDbPd9Dcuc6xjZvTb4IOpAaXRtEHdt2EbHf2kbp3WXwK8j3DvHgJj2AfvO/wAG1lCxc3JmIJAo",bCrlf);
sb.AppendLine("jeLpcIIEomwfsdi/JsgEHQATI1IHzSos3te4MdZtG4tYDr3hw9yrXX45x22eo173uLRWPpCAJds/",bCrlf);
sb.AppendLine("d/roTMvJraTjv9PcC1xAB077tzVAMZI2rXrouoGB4Rr9jWLK78mCC93mZgRH8natrArOPXW5jxWG",bCrlf);
sb.AppendLine("mWieD+c7+0szExwLw+ZeQNw8PLn/AKpaFtwrYxrwQXOIZIEODf3fpJ+TJMSj7ZIMdkTAPpNa7vQ0",bCrlf);
sb.AppendLine("9Zy3e1r2PA/Ogop6vmt59P46hczj9VxWOIdc2pokS4gcCZhhf/I/tqX7axrAG1WG2xztuxrSZb++",bCrlf);
sb.AppendLine("0/2fannn/iIOktO/A1DyuO/lFPQP6vknT1mM54CA7rFokuySI8uQBJhczd9YGOgVVOLmtLnkkREt",bCrlf);
sb.AppendLine("52B3s2uQLer5GYHMqqZU120AjVzSwS57f5FzvZtTvf8AiEj6spiPDgDJHlYV8o/B7PD68/ewWPD2",bCrlf);
sb.AppendLine("P4n2nXwat6qwW1h7eHCVwXQun5uVktssc5wB1n6I13RW36LV3WLWaqGsPYLb5L3/AGv154pXodjw",bCrlf);
sb.AppendLine("+Lnc3HHHJWP60//T9VSSSSUpJJJJTgfWjp1F+N6jmAmYOnK4h/TGh72tgGSABIAE/wDSXc/WHNZs",bCrlf);
sb.AppendLine("9Bp+iZcQJ17NH8pcwGF1zng7Q7gGJ/L/ANBYfxPMBnqB1EfV/edjkOKOL1bbhzh030w4xu2e48wJ",bCrlf);
sb.AppendLine("/O/8yQ22lr3V7y1oBHpiCD9E7t+r/wAz6CXU+qOYLK8Z+3e3ZZug6D3Q3/yay8LPd9oHqDdBH0oM",bCrlf);
sb.AppendLine("/wBoqHHjySgZy7aNq7oV5Olffk4k+i80u2ncQNYP0v3lj35ORkWbrHl7hI3ET/J/zdrVu5TmZlTL",bCrlf);
sb.AppendLine("9jKKwzZIfJd+dudvj81Zd2CxoNlT5AE7VJglAfMAJ7fyLLHhIsj1bIcejIyDsbuId9LUCCPzv+i1",bCrlf);
sb.AppendLine("amF0q/6ALnE6ECXeP9lav1Y+rzspoc46GC93czrtXZYPQMPGaPYC7uSruPlJZBczwwOwju0OY5+O",bCrlf);
sb.AppendLine("MmGMXIdS8ng/VXIs19PZuOrnan/N+it3B+qdVcG47o1jgfcuhZVWwQ1oCmrePl8UPliL7nUudk5r",bCrlf);
sb.AppendLine("Nk3ka7DRDj4tOO0NraAjJJKZgf/U9VSSSSUpUep9QGLUQ0j1HDTyH7ysZeSzGpdY7twPErk+sZ7r",bCrlf);
sb.AppendLine("XEl3ueYFY5AiW/yf6yp89zYwYzR/WS0hH/uv7sWzyuD3JgkegbtbMyCbHOfOwH3WHVuv5ztqw+qd",bCrlf);
sb.AppendLine("QaJqoeLNdXsJESNGsn876W+x6XUuqEOfjU2tdXYBudGojmuHbttjbP8ArarYvTH5Lm2aw4mAPzvu",bCrlf);
sb.AppendLine("WLgwyMuOdylI2B1lI9ZOvQiLPpjFzhXbaToXAz7RMD86ByojHcy4BzS0ke3dp/mrvelfU/cxrrQG",bCrlf);
sb.AppendLine("DwHP+cm659UmV0i6rU16ydSP/MVqHl8ogZabfL1YYc9hOQQ6X8zzuDS9+K4NDhZHt2l4G7R30Wex",bCrlf);
sb.AppendLine("u2trv9J/pE7Mewyx7RLjqXGfJ/u/R/nfvI7AcctayQ0aEbiw6iHe+fzm+z/CIx2mH7RUzgAkuJJ+",bCrlf);
sb.AppendLine("lte8O3/yvYsqWQ2a67NiRPFpsdXqvqltGK5o0IK6Fct9V8lovfU2QHAGDprx2XUroeVnx4Mcu8Q4",bCrlf);
sb.AppendLine("fMxMc0we9/apJJJTMKkkkklP/9X1VJJJJTg/WDL9N4b2rbuDfFx9rWrj+pZz3l9TGA2Wa+0maxxZ",bCrlf);
sb.AppendLine("Xc2N2y5i7Dr+BkXO9SkTMdgdRx9JYVH1bzL8h1j27C7RzjyR8Fj81yebLzcp8NxoCBJ9IdTlc+DH",bCrlf);
sb.AppendLine("hHEfV2cvpnR/tFrRVSGv0BP0tp4+m73dv5tdn0foFWM0W3DdaYklWel9GowWCBL+5PK0gABAWjg5",bCrlf);
sb.AppendLine("aGId59ZHUtTmeanlJANQ6RUAAIGgUbqm21mtwkOEKaSnaz599YemvwLXFodssPLfDt3/AHlm13Wv",bCrlf);
sb.AppendLine("q2uyQKqBpU5xBl30m1j8937y77r/AE1mZiOO2XtEhcDl4hqyTU6sNbWR+l+iAJO83aP3/urG5/lh",bCrlf);
sb.AppendLine("CfEBUJG77Sdrks/u4xE6zi63Qsl1WWx5na5x2vmQ4E7XO3fn+9q7ml4fU1w7heZ4mQWXs2WizHrP",bCrlf);
sb.AppendLine("pVFkBu4fpHbW/S/tr0Hot/r4NbjyBCs/DJ/qjA/ok1/dk1PiOOpif72jfSSSWg0FJJJJKf/W9VSS",bCrlf);
sb.AppendLine("SSUsQDykABwE6SSlJJJJKUkkkkpYgEEHgrl/rR0IZDTdW2e5A8V1KhZUy1pa8SCmZMcckTGWxZMW",bCrlf);
sb.AppendLine("WWOYnHcPllOPkDN3GrYWwJa0BsTxXt9jPo+5egfVxj24DdwgnX70x+ruGbfUAgTO3stLHoZRWK2C",bCrlf);
sb.AppendLine("AFDy3LeyZG7vQf3Wfmub94RFVSVJJJWWopJJJJT/AP/ZADhCSU0EBgAAAAAABwABAQEAAQEA//4A",bCrlf);
sb.AppendLine("J0ZpbGUgd3JpdHRlbiBieSBBZG9iZSBQaG90b3Nob3CoIDQuMAD/7gAhQWRvYmUAZIAAAAABAwAQ",bCrlf);
sb.AppendLine("AwIDBgAAAAAAAAAAAAAAAP/bAIQADAgICAkIDAkJDBELCgsRFQ8MDA8VGBMTFRMTGBEMDAwMDAwR",bCrlf);
sb.AppendLine("DAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAENCwsNDg0QDg4QFA4ODhQUDg4ODhQRDAwMDAwR",bCrlf);
sb.AppendLine("EQwMDAwMDBEMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwM/8IAEQgAeAB4AwEiAAIRAQMRAf/E",bCrlf);
sb.AppendLine("AMkAAQACAgMBAAAAAAAAAAAAAAAFBgQHAQMIAgEBAAMBAQEAAAAAAAAAAAAAAAMEBQIBBhAAAgIB",bCrlf);
sb.AppendLine("BAICAgIDAAAAAAAAAgMBBAUAIBEGEBITFDAhMSJBIxURAAIBAwEEBwMJBQkAAAAAAAECEQASAyEx",bCrlf);
sb.AppendLine("IjITIEFRQlJiBGFyIxAwcYGRoZJDY8GCotIz8LGywuJTc4MUEgABAwEGAwQIBwEAAAAAAAABABEC",bCrlf);
sb.AppendLine("IRAgMVEiA0FxEmEyQmKBkaFScpLS4sHRgrITIzME/9oADAMBAQIRAxEAAADaoAABG89SPNDu0Mvc",bCrlf);
sb.AppendLine("LEAAA4OXHIBxTbXRsu/BbL1ltLvvOGjmgAcUW91SvZw5bXsziaWwMmk996jI1tHZ1/B2zqDa+xUk",bCrlf);
sb.AppendLine("Xxxez+xjffnvcPeXHIgKJtrCr2tWy8Ri42xLdPSikz5CDj/OLz8U9zxacSJuFyCzu1u430AYPPVe",bCrlf);
sb.AppendLine("rudAfO73XkV7MsSfPxLSUjJs8796eDj9/KWEADppktR8XW68KQv8slOitxVSxXqcjGdmRobU+sHO",bCrlf);
sb.AppendLine("+k+eB4ABTojYytaj5Is1XX2DWkZsjWePuX6yU25aeUEsAB5VHqp5VHqp5VHqp5VHqmN80POvTub5",bCrlf);
sb.AppendLine("VPPVTyq989VPKo//2gAIAQIAAQUA8sMVhVtBYHdl3QKsYPA+bajYuH3K0ozKiG02LVmiQRrnXMeX",bCrlf);
sb.AppendLine("1gbFirEEK/WfrOOYqvjVTGlB+DIQFrCtPJECtBSZLQsNmReTW1KnMWqv+pRSDY/ez6Sfk8XK0ide",bCrlf);
sb.AppendLine("ZlO4vXiOOPH/2gAIAQMAAQUA8gEmT65Jndjw/tkpj1802ADG1lnB0C0mv8a8iJa4nUgUR4rXDVIT",bCrlf);
sb.AppendLine("BRP7k4idQnT3oWP+dCMkSBlSogplzvRbbTmT5oV+BtWxVqpeOWGv2GY4nzF5ormZmdUrEMXbiIfu",bCrlf);
sb.AppendLine("D25nnnx//9oACAEBAAEFAPwew8/lzGRmquM1cVaqPixX/J2C2bLVpwm/r0zON3SQxqCGdl+xFepa",bCrlf);
sb.AppendLine("hhHJE+zhQ9Mftn+M1m3ryNbJTqpn2jFXJVLUa7HdESvXAmnUeDb+PH1qbu29c+4K2uptoZdJS2zE",bCrlf);
sb.AppendLine("aTnbYauWHWGZb1+thKRBaxOQrvqQ1c6J6R0WSojKrVdvmYgozXV614L+It4tlHLwBG4SA/6MyloT",bCrlf);
sb.AppendLine("jFLGFpsLnUur8E8PR+TUoK2fg20mE2t5yOMr3k9j62yhcrvuVYZZc94mEQ7M0q6f++2dB2DJNM/t",bCrlf);
sb.AppendLine("WWU8JZeeD6n8JgEAOzt0gxykhI5HIUxmnCLCbddxaqVSe/E9SsOCn1KmnSKNZEbcnkBqKuuhx5bK",bCrlf);
sb.AppendLine("cDY+R441hg2wTId1iks8ksBAN1qyusnJXnut3cpMxXxdmyaejvagMW6nYH4nBiiivbWUEG7sF2Pm",bCrlf);
sb.AppendLine("yVkDLGYQ3vwvXU0xgRiO2YaShdo1tSUrZh7EWKG7stOx8+O6zcsHisNXoK8OUDl9hxcY+4E2Vq6d",bCrlf);
sb.AppendLine("chtbcSwPQgA7ewYqL1W/UOq3o4lE/k/nV/A07hY7GIoBs//aAAgBAgIGPwC0zkWjEOSjKIIYsxvx",bCrlf);
sb.AppendLine("2+O4ajyxUuGFxoSMSK6Sy0zluRGMZ6/uX9sTtns1xQnXpDCHKP1KcImoazG3KWf5qhAmMYoSNSMu",bCrlf);
sb.AppendLine("78yMx1QyL9Cae9L55yQm8gxfr7ptMpFoxDklSlAMCafCEGNRVR2zTqyWmIfPxeu4f+aNIQ/0LPqy",bCrlf);
sb.AppendLine("/SnGmHveOf2onb7w9qhL3SD6PFdluEEmRcg923qA0TrnX3fKoE49Iv6mbtVLf//aAAgBAwIGPwC0",bCrlf);
sb.AppendLine("RGJQ6qvflM4CgW2OdzWKGj5J2enDFPA08yjE48fiW3JqMVgnII9FrHVDL6UJwqCHUXoQMEXdP7UQ",bCrlf);
sb.AppendLine("4nI8B+NojEOShB6o+sFSmA/SHWqR5CgufyEPKWCYatz9vNdO4aTpyU45gog8Lg24sGo/FObBGR1x",bCrlf);
sb.AppendLine("pzC3AMHv6Hfyovj22//aAAgBAQEGPwD5iJE/PDGhjI+w9g62oPduTPWWMnTmT8NbvI+SkyjvCfnc",bCrlf);
sb.AppendLine("jI9gU2AhgG08K/56S3nqA4XEMuRcgjW98X6d3hrFPYOnqYrQg9DJlPUNPppmGPmlZLglgI2tdyRd",bCrlf);
sb.AppendLine("WMh8bKXLtaGZg0cHOyDmbs9+sQ8o6Rp8OQsMaST/AHJbvL3vLV+HMwUNy0dWlWYf1GVX7qV8SM+M",bCrlf);
sb.AppendLine("EjmJt09n8tTiyCfCdvyJ6eZA3iO090VkUlr2FqnCGDa+bDwf9lLiXuC0bJgmfeu4e/WMeUdP/wBW",bCrlf);
sb.AppendLine("ARlTUEATRPrXJzl7QGHw2VmL5N78v8FXernHmyERittUSLt2eHEiMlBoMwCrAQYiZSN+2hjTMTI0",bCrlf);
sb.AppendLine("vE/Y01eWuZiC3b7K0JYnQE3bFEKiLr47t9P+OudkW1wCVY7J9vvW0kOAwEMp0INcQ+2t51H11BzL",bCrlf);
sb.AppendLine("9tfDyK30H5YOoNMyAK5BB7DNOGL2bSZmFHhuVrt2jj9QxJymTlyTzIU/lXMuPH+/ZZQyKYB6/qDW",bCrlf);
sb.AppendLine("KG/x9+pgAdZjs0mkGDM2ZgoBQqVtPZ+pQL7zRNmzZ2W0FCqOxpYnX8NaSIAJMkftosMYcCNpJ2nc",bCrlf);
sb.AppendLine("28VcycVrYzlRJAJVTvKnDv8A6dKMQLZCf6iC1QSLtp38n+3SO/EQJ6BTIonqNO6kBDqZ+nu0oEk7",bCrlf);
sb.AppendLine("bSNDrB2/E/jpvUeoCoGMwBuqBpwLP8PxHoPi4XWbmlTDCWmaAxl3zWExwKrEW7d+/Z4KW0ajaCWK",bCrlf);
sb.AppendLine("yRBlBb37P56YXlAV5cqoAtA3f323LnqFL8kEFpc7FjrNqe5bW6pyGQV00FpuXebzeFaXN6gajULQ",bCrlf);
sb.AppendLine("UbB0SE1ZFknqBmdaus1I6xB++sePFdzQPiHQANO7y7eKnfLnXG4UxeSCSusDxXUHVSVA2ChjgmOI",bCrlf);
sb.AppendLine("n/TxUpCcpBEE6t9OtBso5jDrbWoxoBHShdcraKv7aZ3N4BkxvTPft8VN6dLTrDEGT+pjDqOLz1La",bCrlf);
sb.AppendLine("9Z9hrGCV013xuj32Ph81WubCwDRI0u3wODC7W8FC6CrtIgEDQeb3qCqIAHTbK5gKKAMczJsUkag3",bCrlf);
sb.AppendLine("WKt1cv0gbDkAZMzg9v5ZXuuv9slC4asdAokkezh/HRdse3UAnWmTJIOIm07GOumzeoMTvqbQqqdZ",bCrlf);
sb.AppendLine("3p5jO2Ld4Fx46xZCAhVgCp0MHTZanepWHWOmULEY8IEkam5uGhhV2TI+nqJUl8ZU22RI3H4r1oW3",bCrlf);
sb.AppendLine("ZspOpYkgeZot73coZMouynUk1AGlH1WAQTx6ffWS3Eucxaqm7dYm1SIbxdykXIvLeTxgghjs5hea",bCrlf);
sb.AppendLine("xOPCJ6bsuO9Wa7YT1W+7u+apZWUE65H1eNkXUFVRd1n5WxuJDCKZwrQzAqykgrJjmLHEyrQyJ8R8",bCrlf);
sb.AppendLine("5tW83ZNt7uMQZrMlqb7U2ObgDIP069PeANboA6JKj4iiVNOro3NZiOdLXmfyr7iqL+pTaQoAEDQf",bCrlf);
sb.AppendLine("f5fnr2W1+0aGrcQ+vo//2Q==",bCrlf);

// Decode to a BinData.
Chilkat.BinData imageData = new Chilkat.BinData();
imageData.AppendEncoded(sb.GetAsString(),"base64");

string contentIdStarfish = email.AddRelatedBd("images/starfish.jpg",imageData);
if (email.LastMethodSuccess != true) {
    Debug.WriteLine(email.LastErrorText);
    return;
}

// The src attribute for the image tag is set to the contentIdStarfish:
Chilkat.StringBuilder sbHtml = new Chilkat.StringBuilder();
sbHtml.Append("<html><body><p>This is an HTML email with an embedded image.</p>");
sbHtml.Append("<p><img src=\"cid:CONTENT_ID_STARFISH\" /></p></body></html>");
int numReplacements = sbHtml.Replace("CONTENT_ID_STARFISH",contentIdStarfish);

email.SetHtmlBody(sbHtml.GetAsString());

bool success = mailman.SendEmail(email);
if (success != true) {
    Debug.WriteLine(mailman.LastErrorText);
}
else {
    Debug.WriteLine("Mail Sent!");
}