If you're using SMTP, Outlook is not involved (it is the case when using MAPI, which is using Microsoft MAPI C++ API) for sending mail.
We connect directly to the SMTP server, using plain socket connection with classic connect, send, recv, so you've to be sure there is no firewall rule that would prevent GDC from connecting to the server. We're not reading anything from the system.
I would suggest:
- try with our basic example (
https://4js.com/techdocs/genero/gdc/devel/DocRoot/User/WinMail.html#EXAMPLE - it should work with 2.11 too).
- check smtp server log (if possible) to see if connection have been successful.
- a wireshark capture will also be helpful to see what has been sent by gdc and answered by the server.
In any case, as this is more a support issue, I would recommend to contact directly your support center, so you can exchange code and have personalized support.