I intend to bring to your attention an important problem, in my opinion, concerning the sending and receiving of dematerialized medical prescriptions by e-mail, now very widespread in Italy, for access to pharmaceutical and outpatient services of the National Health Service by citizens, because of Covid-19.
It may happen that the sending or receiving of e-mails is prevented or refused by the security services set up to prevent and protect users by providers or telecommunications companies which, also using spam and phishing prevention services offered by third parties , such as multirbl, DNSBL, etc., filter the IP addresses of the mail servers used for forwarding emails because they are considered unreliable, automatically inserting them in special blacklists, without previously notifying the network manager to which the IP address belongs or the manager of the mail server that uses that IP address.
In this way, the request for life-saving drugs sent via email by the citizen to his doctor or the dematerialized prescription sent to the pharmacy may not reach its destination or end up in the recipient's "spam" box without the sender being able to realize it. Or notice it after days of non-delivery, alerted by an "Undelivered Mail Returned to Sender" message.
If, on the one hand, it is right, for security purposes, to prevent and block that potentially dangerous e-mail classified as "spam", "scam" and "phishing", on the other hand I believe that it is necessary to provide a system or a protocol that informs and guarantees network and server managers on any measures taken against IP addresses in order to prevent cases of false positives and the blocking of lawful emails and IP addresses.