>> On Dec 25, 2017, at 8:57 PM, li...@sbt.net.au wrote: > This of course assumes you've not configured particularly exotic TLS > settings on your end.
Viktor, thanks again, I hope it's not exotic, not to my knowledge, anyhow: that that show what it is ? suggestions and corrections appreciated # grep tls main.cf smtpd_tls_security_level = may smtpd_tls_loglevel = 1 smtpd_tls_key_file = /etc/letsencrypt/live/geko.sbt.net.au/privkey.pem smtpd_tls_cert_file = /etc/letsencrypt/live/geko.sbt.net.au/fullchain.pem smtpd_tls_session_cache_timeout = 36000s smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache tls_random_source = dev:/dev/urandom smtp_tls_loglevel = 1 smtp_tls_security_level = may smtp_tls_note_starttls_offer = yes smtp_tls_session_cache_timeout = 3600s smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache