Problems when sending e-mail stmp

A big greeting for the radzen team

I have a problem when sending email with SMTP, I get the following error message I don't know how to solve it
the following capture defines that

Thanks to the team

Hi @Ricko,

Is this confirm email feature from security settings? Is secure check enabled?

yes this is already activated

In this case I'm not sure why you have such error. If you have Radzen subscription you can send us your project to to debug it.