Maybe an implementation of the Quota system, but in reverse would work well here.
Instead of diskspace being reduced by email piling up... A quota is paid for (cost computed by quantity and message size), and is reduced for each message sent, and rejected once 0 is reached. > -----Original Message----- > From: Frank Herrmann [mailto:[EMAIL PROTECTED] > Sent: Friday, June 06, 2003 6:24 AM > To: James Developers List > Subject: RE: how hard is it to write a SMTP client? > > > Richard and Noel, > > --- "Noel J. Bergman" <[EMAIL PROTECTED]> wrote: > > Richard, > > With respect to writing your own SMTP client, it is > > simple for simple cases, > > but the totality of SMTP isn't simple. > > Considering these facts about 1/2 year ago I chose > James as an implementation basis for a very similiar > project and found James very suitable. (which is a > reliable solution capable of all those nice exception > cases which I could never program myself) BTW. thanks > to all james developers! > > > > > However, I don't see why you can't use James for > > your application. What you > > are proposing seems like a fairly straightforward > > custom application of > > Understanding concepts of James ate up almost half of > development time. :-) > > > James. From what I read on your site, and from your > > post, it is essentially > > a variation on a TMDA (www.tmda.net/) scheme, but > > requiring payment rather > > than authentication. > > > > The challenge-response-payment idea was IMHO first > discussed in "Pricing via processing" (Cynthia Dwork, > Moni Naor, 1991). > > You can find the paper here: > > http://www.wisdom.weizmann.ac.il/~naor/onpub.html > > TMDA is one implementation of that idea. At the moment > the "beloved" company Microsoft is heavily researching > in this field. > > URL: > > http://research.microsoft.com/research/sv/PennyBlack/ > > However, my guess is next version of windows will > contain this feature. > > Greetings, > Frank > > > __________________________________ > Do you Yahoo!? > Yahoo! Calendar - Free online calendar with sync to Outlook(TM). > http://calendar.yahoo.com > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
