That would do it. Do you not have an internal SMTP server that you could simply use? If you don't host your own mail, then your mail may be hosted as part of your web hosting package, and you could use that SMTP server. Unless, of course, everyone in your company explicitly reads their email via a browser.
My IT dept. opened port 465 and I tried with that port on gmail and still got the error. I'm going to try with our internal SMTP and see if that works.
I worked with my IT dept. and we tried opening ports and using our internal SMTP server and I still get the 1172 error. It says the following:
Error 1172 occurred at Error calling method System.Net.Mail.SmtpClient.Send of ObjectId handle: 0xB651184 for obj 0xC06E73[System.Net.Mail.SmtpClient] in domain [LabVIEW Domain for Run] and thread 2892, (System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. Inner Exception: System.Net.Mail.SmtpException: The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required. Learn more at ) in GmailLV86.vi
Well, if you're using your own internal server, then I'm assuming you're putting in the required credentials for your server, and not your Gmail credentials, right? Does your internal SMTP server use SSL? If so, then does it use the same port?
Yes, when I used our internal server I used those credentials and the proper SSL port.
I'm back to troubleshooting the Gmail, as this is the end result goal. Is there a ways to specify which .NET framework to reference? Maybe that's the issue?
OK, I think I have it working. Using port 587 I was able to send SSL mail through smtp.gmail.com. Even though gmail says you can use port 465 or 587, when my IT dept. opened 465, I still received errors. Using port 587 worked.
