using System;
using System.Text.RegularExpressions;
 
public class Test
{
	public static void Main()
	{
		string text = @"--------------------------------- Original Message----------------------------
Some Text
Some Text
Some Text
Some Text
 
--------------------------------- Original Message----------------------------
Some Other Text
Some Other Text
Some Other Text
Some Other Text";
		            Regex rgx = new Regex(@"^[-]*[ ]*Original[ ]{1}Message[ ]*[-]*[\r\n]*[a-zA-Z\r\n ]*", RegexOptions.Multiline);
                    int count = 0;
                    MatchCollection matches = rgx.Matches(text);//Capture all matches in current text file.
 
                    foreach (Match match in matches)//Iterate through each match in Collection.
                    {
                    	count++;
                        Console.WriteLine("Match {0} {1}",count,match.Value);
                    }
	}
}

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