250
|
1 .PS
|
|
2 # mail-agents
|
|
3
|
|
4 lineht = 0.25
|
|
5 circlerad = 0.3
|
|
6
|
|
7 A: box "MTA"
|
|
8 arrow 1.5*linewid
|
|
9 B: box "MTA"
|
|
10 line
|
|
11 box invis "..." wid 0.5
|
|
12 arrow
|
|
13 C: box "MTA"
|
|
14
|
|
15 arrow down from C.s
|
|
16 D: box "MDA"
|
|
17 arrow right linewid/2 from D.e
|
|
18 E: circle "mailbox"
|
|
19 line <-> down from E.s
|
|
20 F: box "MUA"
|
|
21 down
|
|
22 box invis "recipient"
|
|
23
|
|
24
|
|
25 #line <- lineht+boxht/2+0.3+lineht down from A.s
|
|
26 line <- down 2*lineht+boxht/2+circlerad from A.s
|
|
27 G: box "MUA"
|
|
28 box invis "sender"
|
|
29
|
|
30
|
|
31 .PE
|