I will try to do TLS encryption with mails to a customers domain. So I've setup smtp_tls_policy_maps. Everything works fine so far!

Mails which could not transferred through an TLS channel as defined in smtp_tls_policy_maps become deferred instead of bounced?

How can I change this behaviour?

Dec 6 11:47:17 srv-s141 postfix/smtp[18288]: D7226814E:
to=<i...@xxx.de>, relay=mailin.rzone.de[]:25,
delay=81151, delays=81151/0.05/0.17/0, dsn=4.7.4, status=deferred (TLS
is required, but was not offered by host mailin.rzone.de

Thanks for any suggestions?

CU Marc