Hi Folks,
After getting some offline help from Tracy, I have figured out how to make
this work pretty well using the "Send SMTP Email" code on the Foxpro Wiki
(at http://fox.wikis.com/wc.dll?Wiki~SendSmtpEmail#vfpsmtpken). For future
reference, here's what I learned:
I spent a lot of time searching for resources to explain the AUTH LOGIN
protocol. Many sites I found were unclear or incomplete. This one is very good:
www.samlogic.net/articles/smtp-commands-reference-auth.htm
In particular I got sidetracked by other references indicating that you can
chain together the AUTH LOGIN command with the username and password in one
command. Perhaps this works for some servers but it did not work with any
of the three that I tried it with.
I also learned that my internal email server is probably configured to work
as an open relay (Don't PANIC!! It's internal only; it has no external IP
address and is on a server that's behind a NATing router; and it will
reject any email not sent to an address within its own domain), therefore,
although it will accept an AUTH LOGIN sequence, it will work without it.
The code on the wiki does not display output from the SMTP server if a
command is successful; it took me a while to realize that I needed to make
it do that in order to find out what login methods a server "advertises".
Once I did that, I could then cause the code to proceed if "AUTH LOGIN" was
one of the options, and to quit (with a message saying my program doesn't
support the server's requirements) if not. So I will make a note on the
wiki about that.
At some future point I could work on code to handle other authentication
protocols, but this is doing what I need it to do for now.
Thanks for everybody's input.
Ken Dibble
www.stic-cil.org
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