SMTP with SSL support

[FededS]

Hi Everyone,

I would like to know if there is available any piece of code to send SMTP emails with SSL/TSL support. I've been using the vbSendmail.dll works great but does not have SSL support.

Thanks

FededS

[Hack]

Does this help?

[FededS]

Hi Hack, thanks for your reply. The code provided belongs to a Shareware component, what I was looking for is some SMTP vb code with SSL support. If I can find it in plain C or C++ would also help. I have searched all the web without any examples (there are some couple of examples in the web using MFC but would like a non MFC example)

Thanks!

[Hack]

If I can find it in plain C or C++ would also help.

Then I will move it here so our resident C++ guru (a.ka. Danny) will be sure to see it.

[Amahdy]

I remember I have found once ago a vb project using a dll called "Auth.dll" for the TLS ... for the SSL you can use the transfere control found with vb6+

unfortunatly I don't know where is this project found now (commercial projects come first before free open sources in search results...)

however if you want the method of implementing such algorithm you can take a look at the source of "FileZilla" ... otherwise you may use direct windows APIs ...
finally i don't know maybe this library can helps too :
http://sourceforge.net/projects/tlslite/

**for the vb project i think i have a copy in my home pc, i will look for it when i return back, i so I'll share it here or at least point to the website link (unless you can find it in google ...)

[Danny]

You can also try to look for free code on www.sourceforge.org

[Amahdy]

well for the "auth.dll" and how to use it in your project:
http://gnuwin32.sourceforge.net/packages/openssl.htm



a professional example:
http://www.rtfm.com/openssl-examples/

a complete -dll independent- vb project [and it's very rare] :
http://www.planet-source-code.com/vb...43694&lngWId=1

But you have to read the comments there because the code has too many bugs as i remember .. if so it will be kind from you if you share a better code and tell us about it ..

[FededS]

Amahdy and Danny, thanks so much for your help and links, there are lots of examples and will find my way also looking at some sourceforge projects. Thansk!

[vbrook]

FededS did you come up with a solution for yourself? if so would you mind sharing it? I have been searching (in vain) for days. STARTTLS error is my currentl problem

Read the OPENSSL site, but havent had proper time yet

[Hack]

What is the error and what code do you have that is causing it?

[vbrook]

What is the error and what code do you have that is causing it?

I have been using a variety of things, but vbsendmail was one of them

then i looked at the code from the sourceforge link, but couldnt figure out how that could help me, despite the fact that it seemed to use SSL and client/server stuff.

Late last night I found some code on another forum that made it work though, but its a different solution:

objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/sendusing") = 2

'Name or IP of Remote SMTP Server
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserver") = "mail.your.com"

'Type of authentication, NONE, Basic (Base64 encoded), NTLM
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate") = cdoBasic

'Your UserID on the SMTP server
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/sendusername") = "youruserid"

'Your password on the SMTP server
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/sendpassword") = "yourpassword"

'Server port (typically 25)
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserverport") = 25

'Use SSL for the connection (False or True)
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpusessl") = False

'Connection Timeout in seconds (the maximum time CDO will try to establish a connection to the SMTP server)
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpconnectiontimeout") = 60

objMessage.Configuration.Fields.Update

'==End remote SMTP server configuration section==

objMessage.Send

It uses CDO obviously but my only concern is the security of my email, password etc. Any comments on this code OR how I can make the sourceforge code work for me?

[vbrook]

I tried to use the sourceforge code someone posted above, but i couldnt see the link of how I would use it to set up the SSL security. I know its using SSL but I just couldnt figure out how it would work. Any suggestions?

Then I tried using vbSendMail, but it doesnt support SSL. Is there anything from the sourceforge code that could be merged with the vbSendMail to make it work for SSL?

then last night, i found some code on vbforums that got it done for me using CDO technique, but my concern is, it routes the mail through a server called schema.microsoft.com. It sends the p/w and user name info (apparently) unencrypted. Any comments on that code?

[vbrook]

forgot the code:

'==This section provides the configuration information for the remote SMTP server.

objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/sendusing") = 2

'Name or IP of Remote SMTP Server
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserver") = "mail.your.com"

'Type of authentication, NONE, Basic (Base64 encoded), NTLM
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate") = cdoBasic

'Your UserID on the SMTP server
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/sendusername") = "youruserid"

'Your password on the SMTP server
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/sendpassword") = "yourpassword"

'Server port (typically 25)
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpserverport") = 25

'Use SSL for the connection (False or True)
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpusessl") = False

'Connection Timeout in seconds (the maximum time CDO will try to establish a connection to the SMTP server)
objMessage.Configuration.Fields.Item _
("http://schemas.microsoft.com/cdo/configuration/smtpconnectiontimeout") = 60

objMessage.Configuration.Fields.Update

'==End remote SMTP server configuration section==

objMessage.Send

[Danny]

I would also look at sourceforge.org and see if they have Open Source libraries for that. They should.

[Amahdy]

vbrook; first here is c++ section so it could be better to find answers if you post in VB section unless it doesn't matter and you kan have the examples in c++ ...

second take a look at my links in post #7 .. there is pretty library for c++ and vb and there is also a complete vb example ... what seems you need at the end is just the SSL installed in the server ... have you did that already ? so what's your problem exactly so far ?