Switched to selected mailbox folder, customize target email subject and sender

.env

 TELEGRAM_CHAT_ID=
 
 SECURITIES_MAP='{"RU000A1014L8":"LQDT", "RU000A107UL4":"T", "RU000A108X38":"X5"}'
+
+VALID_EMAIL_SUBJECT='Broker report'
+VALID_EMAIL_SENDER='@bcs.ru'

README.md

 Do not forget to remove `var/imap/attachments/*.bin` files after
 
 Use .env:SECURITIES_MAP to substitute more human-readable titles instead of given ones
+
+IMAP Connection string for selected folder: IMAP_PATH={imap.yandex.ru:993/imap/ssl}BCS-robot
+

config/services.yaml

     App\Presentation\PortfolioPresenter:
         arguments:
             $securitiesMap: '%securitiesMap%'
+
+    App\Service\MailFetcher:
+        arguments:
+            $validEmailSubject: '%env(VALID_EMAIL_SUBJECT)%'
+            $validEmailSender: '%env(VALID_EMAIL_SENDER)%'

src/Service/MailFetcher.php

         private LoggerInterface     $logger,
         private TelegramNotifier    $telegramNotifier,
         private PortfolioPresenter  $portfolioPresenter,
+        private string              $validEmailSubject,
+        private string              $validEmailSender,
     )
     {
     }
             return false;
         }
 
-        if (mb_stripos($mail->subject, 'Broker report') === false) {
+        if (mb_stripos($mail->subject, $this->validEmailSubject) === false) {
             return false;
         }
 
-        if (mb_stripos($mail->fromAddress, '@bcs.ru') === false) {
+        if (mb_stripos($mail->fromAddress, $this->validEmailSender) === false) {
             return false;
         }