======The logic of the search is the following:======
  - Define the company you are interested in, its structure, perhaps a subdivision of the company, its location (country, city, district).
  - Define the positions of the persons of the company who may be interested in your proposal. If there are no required email contacts at the official website:
  - Register at some popular career-oriented social networking site like Linkedin, XING etc.
  - Open e.g. Linkedin website.
  - Insert the name of the company you are interested in in the search window.
  - Choose “<the name of the company> in people”.
  - Choose location (country, city).
  - Register at some email verification tool (e.g. Lusha, GetEmail.io, etc.).
  - Bound Lusha to Linkedin or XING etc.
  - Choose a person who can concern your offer directly or indirectly (e.g. Document Controller/Coordinator, Sales, HR, Support, Distribution, Internal Language Services, Executive Officers, Project Managers).
  - Lusha will show you the email and phones for the first 5 persons automatically free of charge.
  - From the 6th person you will be showed only the email extention unpaid.
  - Take on the showed extention and construct the emails for the persons of the given company by analogy.
  - Email construction can involve the substitution of different variants of writing, e.g.
  - "first_name.surname@extention", "first_letter_of_the_first_name.surname@extention", etc.
  - Send a constructed email for a test. If it is not returned after a while, send the by analogue constructed emails to other persons of that company.
  - https://rocketreach.co/ or try to search in Google "company name rocketreach" and see the results.