Does anybody know of any good C# SMTP libraries that do not use
System.Web.Mail (i.e. they don't require CDO)?  In particular I'm looking
for ones that provide the source code, but that are not "open source".  Our
company is getting away from using any open source.

We are converting an application that was originally written in C++ that
used the Dundas SMTP library (source code was provided).  Problem is that I
don't believe Dundas has a C# version, it's strictly C++.

Thanks in advance.

Hello NorCalVikesFan,

I use http://www.quiksoft.com/freesmtp/ for this. I dont believe they release
source, but its still a quality *free* library.

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Some folks hate Indy some are fond of it, I never used it.

http://www.indyproject.org/

Cor

There are tons.  Just google for them.  Some at codeproject and csharpcorner
I have seen.

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your company wants a commercial application (not open source), where the
third party provides source code?

That policy works for mainframe applications, but not for small components
for which there are a hundred competitors.

While the request is absurd on its face, you may be able to find a control
vendor that is releasing an smtp component as a good faith gesture to get
your to buy their other (less visible) libraries. That is exactly what
Dundas did.  The library they sold was the TCP library.  The SMTP source was
a freebie that used their library.

Perhaps if you do the same thing, and look for a company that makes a TCP or
Sockets library, you can find someone else in the same situation.
(Doubtful, though... the framework already provides a socket library).

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Talking about absurd, I don't think so.

I had a problem with System.Web.Mail.SMTP in setting the Server to a
non-local machine that requires authentication.

I never said it was absurd to use another component to send e-mail.  You are
free to do so, and there are a number of open source components available.
I've seen many folks recommend the Indy project (haven't used it).

There are workarounds for what you are experiencing as well.  google for
"CDO authentication .net" and you should find them.

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