diff --git a/detection-rules/headers_replyto_mismatch_sus_tld.yml b/detection-rules/headers_replyto_mismatch_sus_tld.yml
index 85e5a5d2684..393a0ef1dc7 100644
--- a/detection-rules/headers_replyto_mismatch_sus_tld.yml
+++ b/detection-rules/headers_replyto_mismatch_sus_tld.yml
@@ -8,81 +8,9 @@ source: |
   and (
     any(headers.reply_to,
         .email.email != sender.email.email
-        and any([.email.domain.tld, sender.email.domain.tld],
-
-                // https://raw.githubusercontent.com/hagezi/dns-blocklists/main/adblock/spam-tlds-ublock.txt
-                . in (
-                  "ae",
-                  "agency",
-                  "asia",
-                  "autos",
-                  "bar",
-                  "beauty",
-                  "bid",
-                  "bio",
-                  "biz",
-                  "boats",
-                  "boston",
-                  "boutique",
-                  "buzz",
-                  "cf",
-                  "cfd",
-                  "cn",
-                  "cyou",
-                  "dad",
-                  "dance",
-                  "degree",
-                  "discount",
-                  "esq",
-                  "fit",
-                  "foo",
-                  "fun",
-                  "fyi",
-                  "gdn",
-                  "gq",
-                  "guru",
-                  "hair",
-                  "haus",
-                  "in",
-                  "jp",
-                  "live",
-                  "loan",
-                  "loans",
-                  "makeup",
-                  "market",
-                  "ml",
-                  "mom",
-                  "monster",
-                  "mov",
-                  "name",
-                  "nexus",
-                  "okinawa",
-                  "ooo",
-                  "phd",
-                  "prof",
-                  "pw",
-                  "quest",
-                  "rest",
-                  "review",
-                  "ru",
-                  "sbs",
-                  "skin",
-                  "space",
-                  "surf",
-                  "tk",
-                  "tokyo",
-                  "top",
-                  "uno",
-                  "voto",
-                  "website",
-                  "wiki",
-                  "work",
-                  "wtf",
-                  "xyz",
-                  "zip",
-                  "zone"
-                )
-        )
+        and .email.domain.domain != sender.email.domain.domain
+        and not strings.icontains(sender.display_name, "marketing")
+        and any([.email.domain.tld, sender.email.domain.tld], . in $suspicious_tlds)
     )
   )
 tactics_and_techniques:
@@ -92,4 +20,4 @@ detection_methods:
   - "Sender analysis"
 id: "a5f5b25a-0b7d-5ecc-8cf8-295a8433bad1"
 testing_pr: 782
-testing_sha: 6cb6d80dadb1c649790026ac7a291629fb539604
+testing_sha: 9611a3e517c280c98beea720aa4b32c536232478