Error 363503 occurred at LabVIEW SMTP Client

[qwerty7]

On using available Labview example  Vi Send Email using SMTP Client.vi  error  occurs as Error 363503 occurred at LabVIEWSMTPClient.

The required inpt fields are filled in correctly as well tried along with TLS enabled as well as not enabled but the error comes.

Please can anyone provide me the explanation as to why this error comes and how to make the Vi work.

Please find the attachment below.

[Sir_N]

Started to ply with it myself yesterday and got the exact same Error.

I did some try and horrror studies and found that if I first sent it by TLS and got this error I then sent it again without TLS, then the mail got through.

My guress is that port 25 is not supposed to be used with TLS so this error is not an actual error more a message from the library. The code is proteced so I can not for the moment tell.