diff --git a/firmware/src/main.cpp b/firmware/src/main.cpp
index 183dd21..cc6e935 100644
--- a/firmware/src/main.cpp
+++ b/firmware/src/main.cpp
@@ -76,7 +76,7 @@ static const PhyConfig CONFIGS[] = {
   { "meshcore",   'C', 869.618f, 62.5f, 8, 5, 0x12, 16 },
   // Reticulum RNode PHY (operator-configured) — user's RNS interface:
   // 869.525 MHz / 125 kHz / SF8 / CR4:5. Sync word 0x12 is RNode's default.
-  { "reticulum",  'R', 869.525f, 125.0f,  8, 5, 0x12, 16 },
+  { "reticulum",  'R', 869.525f, 125.0f,  8, 5, 0x12, 18 },
 };
 static const size_t NUM_CONFIGS = sizeof(CONFIGS) / sizeof(CONFIGS[0]);
 static const uint32_t DWELL_MS = 3000;   // camp long enough to sit through a
@@ -443,8 +443,11 @@ static uint8_t  rnsEdSeed[32], rnsEdPrv[64], rnsEdPub[32];  // Ed25519 (signing)
 static uint8_t  rnsPub[64];                    // X25519_pub || Ed25519_pub
 static uint8_t  rnsNameHash[10];               // SHA256(app name)[:10]
 static uint8_t  rnsDestHash[16];               // SHA256(name_hash||ident_hash)[:16]
-static const char* RNS_APP_NAME = "archy.messh";
-static const char* RNS_APP_DATA = "archy-messh";
+// Announce an LXMF *delivery* destination so we show up as a messageable
+// contact in Reticulum/LXMF clients (app "lxmf", aspect "delivery"). app_data
+// is the display name. Verified against RNS.Destination.hash().
+static const char* RNS_APP_NAME = "lxmf.delivery";
+static const char* RNS_APP_DATA = "Archy-Messh";
 static uint32_t lastRnsAnnounceMs = 0;
 static const uint32_t RNS_ANNOUNCE_INTERVAL_MS = 30000;