RE: "send to a friend" from websites

[Stuart D. Gathman]

>(What is your application written in?)

My application is written in C# and VB.NET, which have pretty robust
object models for messaging, base64 decoding, regex searching, etc.

> But then, those Windows SMTP "events" sound a lot like 
> sendmail milters -
> and would be a pretty flexible way to go.> 

It is a publicly documented API, and MS doesn't change these too often,
other than to add functionality. Heck, they still support things like
DAO (not ADO) and ODBC for database access, 10+ years later. One thing
MS usually does well (often to the detriment of security and code bloat)
is make most of their new stuff backwards compatible.

Here's a link that describes the SMTP event sink interface:
http://tinyurl.com/29765 
Currently, you have to use a COM wrapper if you want to use a .NET
language, although I imagine a native .NET interface might be there in
Windows Server 2003. Perhaps it would be worth writing a simple GPL
Vbscript implementation to the Python/Perl reference implementations. I
will put that on my (long) list of things I want to do.

Thanks for your help.

I hate cross-posting in general, but do you think posting to the general
SPF list might be a good idea? I'd just like confirmation that my
proposed envelope sender, "From:" header, and "Sender:" header are the
correct way to handle this in light of SPF. Or did you indicate that my
proposed scheme (envelope=bai.org,From header=thrid pary, sender
header=bai.org) was correct with your suggestion #1?

Regards,
	Ryan