diff --git a/backend/src/app/config.clj b/backend/src/app/config.clj
index 1ca637396..aed780694 100644
--- a/backend/src/app/config.clj
+++ b/backend/src/app/config.clj
@@ -87,7 +87,10 @@
    :ldap-attrs-fullname "cn"
 
    ;; a server prop key where initial project is stored.
-   :initial-project-skey "initial-project"})
+   :initial-project-skey "initial-project"
+
+   ;; time to avoid email sending after profile modification
+   :email-verify-threshold "15m"})
 
 (s/def ::default-rpc-rlimit ::us/vector-of-strings)
 (s/def ::rpc-rlimit-config ::fs/path)
@@ -213,6 +216,7 @@
 (s/def ::telemetry-uri ::us/string)
 (s/def ::telemetry-with-taiga ::us/boolean)
 (s/def ::tenant ::us/string)
+(s/def ::email-verify-threshold ::dt/duration)
 
 (s/def ::config
   (s/keys :opt-un [::secret-key
@@ -334,7 +338,8 @@
                    ::telemetry-uri
                    ::telemetry-referer
                    ::telemetry-with-taiga
-                   ::tenant]))
+                   ::tenant
+                   ::email-verify-threshold]))
 
 (def default-flags
   [:enable-backend-api-doc
diff --git a/backend/src/app/rpc/commands/auth.clj b/backend/src/app/rpc/commands/auth.clj
index b38fa83b5..e4b36e84b 100644
--- a/backend/src/app/rpc/commands/auth.clj
+++ b/backend/src/app/rpc/commands/auth.clj
@@ -38,13 +38,11 @@
 (def schema:token
   [::sm/word-string {:max 6000}])
 
-(def ^:private default-verify-threshold
-  (dt/duration "15m"))
-
 (defn- elapsed-verify-threshold?
   [profile]
-  (let [elapsed (dt/diff (:modified-at profile) (dt/now))]
-    (pos? (compare elapsed default-verify-threshold))))
+  (let [elapsed (dt/diff (:modified-at profile) (dt/now))
+        verify-threshold (cf/get :email-verify-threshold)]
+    (pos? (compare elapsed verify-threshold))))
 
 ;; ---- COMMAND: login with password