1 \begin{tabular}[hbt]{| r || p{0.16\textwidth} r | p{0.16\textwidth} r | p{0.16\textwidth} r |}

2 \hline

3 \# &

4 O'ReillyNet & 2007 &

5 MailRadar & YYYY &

6 Bernstein & 2001 \\

7 \hline \hline

8 1 &

9 mail security layers & \textgreater 22\% &

10 \textbf{sendmail} & 24\% &

11 \textbf{sendmail} & 42.3\% \\

12 \hline

13 2 &

14 \textbf{sendmail} & 12.3\% &

15 \textbf{postfix} & 20\% &

16 Microsoft Exchange & 18.4\% \\

17 \hline

18 3 &

19 \textbf{postfix} & 8.6\% &

20 \textbf{qmail} & 17\% &

21 \textbf{qmail} & 17.4\% \\

22 \hline

23 4 &

24 Microsoft Exchange & 7.6\% &

25 Microsoft Mail & 15\% &

26 IMail & 5.9\% \\

27 \hline

28 5 &

29 \textbf{qmail} & 5.3\% &

30 \textbf{exim} & 13\% &

31 smap & 2.4\% \\

32 \hline

33 6 &

34 \textbf{exim} & 5.0\% &

35 IMail & 2\% &

36 \textbf{postfix} & 1.6\% \\

37 \hline

38 7 &

39 Cisco & 3.0\% &

40 Microsoft Exchange & 1\% &

41 \textbf{exim} & 1.5\% \\

42 \hline

43 % 8 &

44 %Barracuda & 2.8\% &

45 %mail security layers & 1\% &

46 %NTMail & 1.3\% \\

47 % \hline

48 % 9 &

49 % & &

50 %InterMail & 1\% &

51 %NetWin Dmail & 0.8\% \\

52 % \hline

53 % 10 &

54 % & &

55 %Lotus Domino & 1\% &

56 %Software.com Post.Office & 0.6\% \\

57 % \hline

58 \end{tabular}

59 %\begin{tabular}[hbt]{| r || p{0.16\textwidth} r | p{0.16\textwidth} r | p{0.16\textwidth} r |}

60 % \hline

61 % \# & O'ReillyNet & 2007 & MailRadar & YYYY & Bernstein & 2001 \\

62 % \hline \hline

63 % 1 & \textbf{sendmail} & 12.3\% & \textbf{sendmail} & 24\% & \textbf{sendmail} & 42.3\% \\

64 % \hline

65 % 2 & \textbf{postfix} & 8.6\% & \textbf{postfix} & 20\% & Microsoft Exchange & 18.4\% \\

66 % \hline

67 % 3 & Postini & 8.5\% & \textbf{qmail} & 17\% & \textbf{qmail} & 17.4\% \\

68 % \hline

69 % 4 & Microsoft Exchange & 7.6\% & Microsoft Mail & 15\% & IMail & 5.9\% \\

70 % \hline

71 % 5 & MXLogic & 6.0\% & \textbf{exim} & 13\% & smap & 2.4\% \\

72 % \hline

73 % 6 & \textbf{qmail} & 5.3\% & IMail & 2\% & \textbf{postfix} & 1.6\% \\

74 % \hline

75 % 7 & \textbf{exim} & 5.0\% & Microsoft Exchange & 1\% & \textbf{exim} & 1.5\% \\

76 % \hline

77 % 8 & Concentric Hosting & 4.5\% & Symantec Mail Security & 1\% & NTMail & 1.3\% \\

78 % \hline

79 % 9 & Cisco & 3.0\% & InterMail & 1\% & NetWin Dmail & 0.8\% \\

80 % \hline

81 % 10 & Barracuda & 2.8\% & Lotus Domino & 1\% & Software.com Post.Office & 0.6\% \\

82 % \hline

83 %\end{tabular}