E-Mail lost on Exchange Server using TLS

[Eric1977]

Glad that you got it working. With that said, my bet is LabVIEW is not the issue. It either has something that isn't supported or you have not compared the pieces of information to make sure they are the same.

[Lab_CD · Accepted solution]

Hey Guys thanks for all the support!

I have learned a lot and it seems that I underestimated the problem!

In the end I followed the suggestion of using a system call and it works!

PS: Sorry for the confusion with "Office365". I meant an alternative external email provider like Gmail (only an example), but in this case I called it "Office365". I wanted to know if our internal exchange server behaves differently than the external one. Neither return any error messages as far as I can see. As I have learned, this can have several (reasonable) reasons...

[billko]

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@Lab_CD wrote:

Hey Guys thanks for all the support!

I have learned a lot and it seems that I underestimated the problem!

In the end I followed the suggestion of using a system call and it works!

PS: Sorry for the confusion with "Office365". I meant an alternative external email provider like Gmail (only an example), but in this case I called it "Office365". I wanted to know if our internal exchange server behaves differently than the external one. Neither return any error messages as far as I can see. As I have learned, this can have several (reasonable) reasons...

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It's great that you figured it out!  Don't forget to mark the post that helped you out as a solution (and maybe your post as well - you can have more than one solution) so people in the future can take advantage of your knowledge.  🙂

This feels like one of those solutions that would be super-helpful.

[cordm]

I use this snippet to send emails. It works with our office365 account.

The crucial part is that 'from' and 'username' (sender in your original message) are identical. This is also seems to be a difference in your LabVIEW code and your script.

I was pulling my hair over the same problem..

Maybe it works for you, too?

[rolfk]

Nice find. And probably a (mild) antispam setting in the Exchange server.

[Lab_CD]

Hi cordm,

thanks for the snippet.

Unfortunately this is not working in my environment (internal and external office365 account).

best regards.