Merge pull request #12173 from thingsboard/revert-11918-fix-email-sender-address

Revert "Fix email sender address issue"

application/src/main/java/org/thingsboard/server/service/mail/TbMailSender.java

@@ -67,9 +67,6 @@ public class TbMailSender extends JavaMailSenderImpl {
         if (jsonConfig.has("password")) {
             setPassword(jsonConfig.get("password").asText());
         }
-        if (jsonConfig.has("mailFrom")) {
-            setUsername(jsonConfig.get("mailFrom").asText());
-        }
         setJavaMailProperties(createJavaMailProperties(jsonConfig));
     }