How to organize a single secure automated platform for information exchange between subjects?

Question

NoSQL

• The nature of mailings is irregular,
• ensuring secure distribution of data within a closed group of users, it is desirable that all messages reach the addressees and be processed by them without loss
• tracking the addition of new participants to the mailing list
• ensuring systematized, centralized storage of information received on the user side with possible subsequent processing and search in the array of previously transmitted information.
that is, it is necessary to organize a single secure automated platform for information exchange between subjects with a systematized storage of messages.
the essence of the problem, in general, there is a group of organizations involved in the exchange of information about unscrupulous creditors, the transfer of information is carried out by regular e-mail and the information is not systematized. With such data transfer, a number of problems arise, such as: since the mailing is carried out in an open form to a large list of e-mail addresses, in some cases this leads to the operation of spam filters on the side of the recipients and their failure to receive significant information, adding new users to the mailing list is not controlled in any way + each recipient independently decides how to store the received information, which makes it difficult to further work with the information.
I would like to know with what means it would be possible to solve a similar problem.
would RabbitMQ+MongoDB work?

Answer 1

It looks very much like a torn piece from some TK. Without the rest of the context, the question sounds very strange. Can you at least describe in your own words what “mailings”, “participants”, “subjects”, “messages” means in this case.
It can be just short texts and video files and a bunch of everything else. And it can be within the room, and maybe all over the country, the world. Both delayed and realtime.
In short, if you are a contractor, how would you figure it out yourself or hire someone competent.
If you are writing a Diploma, then try to formulate the question correctly and competently, if possible with the completeness of the input data.

Answer 2

Even a physical Kanban board fits your description.

Answer 3

Email delivery is not a reliable way to deliver information. Email the letter may not reach the recipient. Email mail is like a UDP packet - maybe it will reach the recipient.
By mail, you can only notify the user that by logging into the website, he will be able to receive notifications like "Hello, you have received a message. Please go and read the message at the link httpS://top-sekret.net/?token= aaa-111-bbb-ccc-999"
And the website itself must have its own DBMS, in which secret information will be stored. The differentiation of rights to receive information should be carried out by the website, depending on who is logged in.