I have been using my Microsoft Outlook client with POP and SMTP configuration without any problem. Now I need to send alert e-mails using SQL Server DB Mail configuration. But even on the same PC that I used Outlook, Dynadot SMTP server continuously says "The SMTP server requires a secure connection or the client was not authenticated. The server response was: authentication required".
I have tried it with many clients including online ones, the error stays same with above.
Is there a way to send mails programmatically using Dynadot SMTP?
Could you please email us the problem and send the screenshot of the error message and the related message at [email protected]? Our engineer will take a look at it and we will get back to you via email. Sorry for the inconvenience.