On Tue, May 22, 2018, Steve Atkins wrote: > If you're connecting to an MX that only supports TLS 1.0 and you've > configured your smarthost to not support TLS 1.0 for opportunistic > encryption then it's going to fall back to not using any sort of encryption > and sending as plaintext.
That depends on the MTA (and its configuration), e.g., sendmail before 8.16 would not "fall back to not using any sort of encryption and sending as plaintext." (it would require "manual" configuration to turn off the use of STARTTLS). _______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
