Error 50026: 535: 5.7.0 License key cannot use 3CX SMTP

[3aleX]

I have just started a free 30-day trial and successfully setup the 3CX-hosted account.
After adding my first user, I get the Error 50026 and user doesn't receive any email with credentials.

Does the system not allow sending emails during the trial period?

 

[TheodorosG_3CX]

Please contact our Customer Care team in the below contact form for further clarification on your license:
• https://www.3cx.com/contact/