Sorry about the bad formatting of the diagram in my previous post. Here is
one more attempt to get Eudora to send it exactly as I wrote it.
+------------+ +-----------+
| Originator | | Recipient |
+-----+------+ +-----------+
| ^
| Mail Handling Service |
/+=================================================+\
|| | | ||
|| | | ||
V |
+---------+ +--------+ +----+----+
| | | Notice |<------------+ |
| Source +...>| Handler| | Dest |
| | | |<---+ | |
+----+----+ +--------+ | +---------+
| |DSN ^ # added DSN
V | |
+---------+ +----+----+ +----+----+
| Relay +--> ..... -->| Relay +-->| Relay |
+---------+ +----+----+ +----+----+
^
|
+---------+ +---------+
| Spammer +--> ..... -->| Relay + # added Spammer
+---------+ +---------+
Fig. 3 from Dave Crocker's draft ( edits shown with # ).
************************************************************* *
* David MacQuigg, PhD * email: dmq at gain.com * *
* IC Design Engineer * phone: USA 520-721-4583 * * *
* Analog Design Methodologies * * *
* * 9320 East Mikelyn Lane * * *
* VRS Consulting, P.C. * Tucson, Arizona 85710 *
************************************************************* *