How to make a newsletter to users of the VK community?

Question

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How to make a newsletter to users of the VK community?
And what is the limit?

Answer 1

-Authorize through the standalone token
-Get a list of group users by the id of the group you manage
-Create a function to send a message (id, message). You can also generate different messages so that you don’t get banned for bot-keeping. + do a friend check, if a friend then the message limit is higher. If not a friend, then a maximum of 20 per day. You can screw it up so that the cycle is just for 15-20 iterations.
-Create a sleep(ms) function so that messages are sent randomly with an interval of 2-4 seconds, it will also protect against a ban.
-Through the cycle we send messages to the id of the group members.
I do everything myself on js + jQuery