diff --git a/src/actions/ActivityAction.lua b/src/actions/ActivityAction.lua
index d0fc317..9353df8 100644
--- a/src/actions/ActivityAction.lua
+++ b/src/actions/ActivityAction.lua
@@ -140,6 +140,13 @@ function _M.signRpc(agent, data)
 	role:changeUpdates({{type = "sign", field = curDay, value = yearMonth}})
 	role:checkTaskEnter("SignIn")
 
+	if monthData[curDay].daily_sign_email ~= "" then
+		local emails = monthData[curDay].daily_sign_email:toArray(true,"=")
+		for _, emailId in pairs(emails) do
+			redisproxy:insertEmail({roleId = role:getProperty("id"), emailId = emailId})
+		end
+	end
+
 	SendPacket(actionCodes.Activity_signRpc, MsgPack.pack(role:packReward(reward, change)))
 	return true
 end
--
libgit2 0.21.2