configuration = {
  gmail: {
    username: 'example@gmail.com',
    password: 'pa$$word',
    host: 'imap.gmail.com',
    ssl: true,
    port: 993
  },
  ftp: {
    username: 'example@gmail.com',
    password: 'pa$$word',
    host: 'imap.gmail.com',
    ssl: true,
    port: 42
  }
}

mail = Mail.new host: configuration[:gmail][:host], port: configuration[:gmail][:port], username: configuration[:gmail][:username], password: configuration[:gmail][:password], ssl: configuration[:gmail][:ssl]
ftp = FTP.new host: configuration[:ftp][:host], port: configuration[:ftp][:port], username: configuration[:ftp][:username], password: configuration[:ftp][:password], ssl: configuration[:ftp][:ssl]