Hi,
it's not possibile to connect on TLS with HSBC without a public CA certificate. Not selfsigned is permitted.
No edge server it's mandatory.
Import certificate on Exchange computer store and set it to use with SMTP service:
Enable-ExchangeCertificate
-Thumbprint CERTTHUMBPRINT -Services SMTP
You need to create a custom send connector, complete domain scope with all HSBC domain and set bridgehead Exchange server. After the send connector creation set the Enforce TLS:
Set-SendConnector CONNECTORNAME -RequireTLS $true
Be careful to default internet receive connector that accept TLS connection.
This is a good site for testing: https://www.checktls.com/
Bye bye.
Raffa!
-
Edited by
Raffaele Colavecchi
13 hours 33 minutes ago