If you have trouble sending email via CURL functions, how about trying those options:
This way, we get right port, use SSL, but with TLS upgrade on a normal smtp URL. Using SMTPS URL fails as it starts a SSL connection right away. For some server this fails as they need a normal SMTP start and later an upgrade to SSL.
PS: This way you can send email via MBS Plugin in both FileMaker and Xojo over Office 360 smtp servers from Microsoft.
24 09 14 - 22:33