c# - Best way for sending advance email -

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i'd send email asp.net . use code , work fine.

mail.from = new mailaddress("mail@gmail.com", "sender", system.text.encoding.utf8); string = session["umail"].tostring(); mail.to.add(to); mail.isbodyhtml = true;  mail.subjectencoding = encoding.utf8; mail.bodyencoding = encoding.getencoding("utf-8"); mail.subject = "subject"; mail.body = "body" ; smtpclient smtp = new smtpclient("smtp.gmail.com", 587); smtp.usedefaultcredentials = false; smtp.enablessl = true; smtp.credentials = new networkcredential("mail@gmail.com", "pass"); smtp.send(mail);

but i'd custom , beautiful mail. emails send facebook, google team , etc. know can use html tag in mail.body way? best way ?

this ready use code snippet use sending email contains both text content , content based on html template:

        // first create plain text version , set alternateview         // create html version         mailmessage msg = new mailmessage();          msg.from = new mailaddress("from@email", "from name");         msg.subject = "subject";         msg.to.add("to@email");         msg.bodyencoding = encoding.utf8;          string plainbody = "body of plain email";          //first create text version         alternateview plainview = alternateview.createalternateviewfromstring(plainbody, encoding.utf8, "text/plain");         msg.alternateviews.add(plainview);          //now create html version         maildefinition message = new maildefinition();         message.bodyfilename = "~/mailtemplates/template1.htm";         message.isbodyhtml = true;         message.from = "from@email";         message.subject = "subject";          //build replacement collection replace fields in template1.htm file         listdictionary replacements = new listdictionary();         replacements.add("<%username%>", "tousername");//example of dynamic content username          //now create mail message using mail definition object         //the createmailmessage object takes source control object last parameter,         //if object working webcontrol can pass "this",         //otherwise create dummy control below.         mailmessage msghtml = message.createmailmessage("to@email", replacements, new literalcontrol());          alternateview htmlview = alternateview.createalternateviewfromstring(msghtml.body, encoding.utf8, "text/html");  //example of linked image                 linkedresource imgres = new linkedresource(server.mappath("~/mailtemplates/images/imga.jpg"), system.net.mime.mediatypenames.image.jpeg);         imgres.contentid = "imga";         imgres.contenttype.name = "imga.jpg";         imgres.transferencoding = system.net.mime.transferencoding.base64;         htmlview.linkedresources.add(imgres);          msg.alternateviews.add(htmlview);          //sending prepared email         smtpclient smtp = new smtpclient();//it reads smpt params web.config         smtp.send(msg);

and these key parts of html template:

<p>username: <%username%></p>  <img src="cid:imga"/>

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