Back in 2020 there was a thread about mail delivery deferrals with the message "dh key too small'. Well, I've got them on the toaster I just put into production.
TLS_connect_failed:_error:0A00018A:SSL_routines::dh_key_too_small The advise at the time was to check the crypto policy (update-crypto-policies --show) and to set to LEGACY if that's not the case. # update-crypto-policies --show LEGACY # update-crypto-policies --is-applied The configured policy is applied # update-crypto-policies --check The configured policy matches the generated policy These tests indicate I am using legacy settings, but I am still getting these delivery issues. Any suggestions?