mailcow/src/mailcow-dockerized/data/conf/postfix/smtp_dsn_filter - kubeia - Gitiles

 /^4(\.\d+\.\d+ TLS is required, but host \S+ refused to start TLS: .+)/
         5$1
 /^4(\.\d+\.\d+ TLS is required, but was not offered by host .+)/
         5$1
 /^4.7.5(.*)/
         5.7.5$1
	/^4(\.\d+\.\d+ TLS is required, but host \S+ refused to start TLS: .+)/
	5$1
	/^4(\.\d+\.\d+ TLS is required, but was not offered by host .+)/
	5$1
	/^4.7.5(.*)/
	5.7.5$1