Disable TLS Security

Hello everybody,

I try to set up a SMTP Connection and get the following error:

"error": "Hostname/IP doesn't match certificate's altnames: \"Host: subdomain.de.outbound.example.com. is not in the cert's altnames: DNS:example.com, DNS:www.example.com\""

There is a problem with the certificate of the Domain and the Subdomain which I can not resolve.

Is it possible to deactivate TLS Security?

cheers
Sebastian

No, for custom SMTP providers the requirements listed at (Configure External SMTP Email Providers) include the support of TLS with a certificate signed by a public certificate authority and this cannot be disabled.