On 02/02/2018 09:36, Peter Keel wrote:
Since I've made TLS for SMTP mandatory. The respective admins of these servers might want finally at least enable voluntary TLS; some of their customers apparently would like to receive mails from my server.
Since you seem to like quotes, Jon Postel had one for you:
"Be liberal in what you accept, and conservative in what you send"
Ciao!