they are not enforcing tls, since mx.suckless.org supported tls before, according to their log, last time mx.suckless.org has tls on 2023-02-06, so they use the cache for the following email delivery, but out of a sudden, mx.suckless.org downgrade to non tls, so email failed to deliver.
so my question is downgrade from tls to non-tls on mx.suckless.org is a deliberated step? On 08.04.23 16:19, Joseph Graham wrote: > Is your mail provider enforcing mandatory TLS? > > On Saturday, 8 April 2023 15:40:21 BST p...@mailbox.org wrote: > > Hello everyone, > > > > I try to post to the list, but randomly failed with the error `TLS is > > required, but was not offered by host mx.suckless.org` I report the > > issue [1] to my email provider, it seems that mx.suckless.org somehow does > > not properly configured. > > > > [1] > > https://userforum.mailbox.org/topic/6527-tls-is-required-but-was-not-offere > > d-by-host > > > > >
