Sender Telegram Serivece

Task: To create a small service with authorization and registration, through which it is possible to organize mass mailings from Telegram accounts (for an individual user of the service, you can specify an infinite number of telegram accounts).
1) The user authorizes his Telegram accounts and contributes the recipients he wants to send
2) Makes a spreadsheet in the service, enters: the account (from which it will send), the recipient, the dispatch timer, the mailing text, saves the distribution table at its discretion
3) Launches the newsletter
Development time: 3 weeks
Price: $223