Article	Figure 1	Figure 2	Figure 3	Figure 4
Figure 5	Figure 6	Figure 7	Figure 8	Figure 9
Figure 10	Figure 11	Figure 12	mar99.tar

Figure 7: host command to find mail servers

host ABC.com
ABC.com mail is handled (pri=0) by ab-mail.abc.com
ABC.com mail is handled (pri=1) by betty.abc.com
ABC.com mail is handled (pri=2) by biz.abc.com