Regarding #SMTPSmuggling, anyone knows if #Postfix 2.10 is affected? According to #RedHat versions 8 and 9 may be but they're still in investigation and they naturally focus on the more recent versions first. However... #RHEL 7 includes 2.10 and at least smtpd_data_restrictions is a configuration option that is not present... https://access.redhat.com/security/cve/cve-2023-51764