log mail sending

src/main/java/at/ac/uibk/gitsearch/service/ReviewService.java

@@ -409,13 +409,19 @@ public class ReviewService {
         reviewRepository.save(review);
 
         for (User u : authorityService.findAllUsersWithAuthority("ROLE_REVIEW_MANAGER")) {
-            mailService.sendEmail(
-                u.getEmail(),
-                "NEW REVIEW REQUESTED",
-                userO.get().getEmail() + " requested a review for " + request.getResource(),
-                false,
-                false
-            );
+            if (
+                mailService.sendEmail(
+                    u.getEmail(),
+                    "NEW REVIEW REQUESTED",
+                    userO.get().getEmail() + " requested a review for " + request.getResource(),
+                    false,
+                    false
+                )
+            ) {
+                LOGGER.info("Sent mail to " + u.getEmail());
+            } else {
+                LOGGER.warn("Failed to send mail to " + u.getEmail());
+            }
         }
     }