message.IsBodyHtml=true in SmtpMail mail sending

 Hi

 I was using mail message class to send mail whose content is built using a string builder so I used message.IsBodyHtml=true, now I want to use SmtpMail how can I use message.IsBodyHtml=true in SmtpMail mail sending

 

SmtpMail.Send("xyz@yahoo.com", "xyz@mymail.com", "enquiry", content); 

 this content is built using a string builder class

 

Thanks in Advance

 

 

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