Why does StringBuilder.AppendLine not add a new line with some strings?

Question

I\'m trying to use stringbuilder to create a body of string to be used in a text (not HTML) email. However some lines (where i include dynamic data, a new line is not added,

Answer 1

Instead of

sbUser.AppendLine();

Try using

sbUser.Append(Environment.NewLine);

No idea why this works...