diff --git a/features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/MessagesView.kt b/features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/MessagesView.kt
index 8eabf156af..05329c3fea 100644
--- a/features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/MessagesView.kt
+++ b/features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/MessagesView.kt
@@ -241,6 +241,9 @@ fun MessagesView(
             state.customReactionState.eventSink(CustomReactionEvents.ShowCustomReactionSheet(event))
         },
         onEmojiReactionClick = ::onEmojiReactionClick,
+        onVerifiedUserSendFailureClick = { event ->
+
+        }
     )
 
     CustomReactionBottomSheet(
diff --git a/features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/actionlist/ActionListPresenter.kt b/features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/actionlist/ActionListPresenter.kt
index 840e12583f..802fdbf9ed 100644
--- a/features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/actionlist/ActionListPresenter.kt
+++ b/features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/actionlist/ActionListPresenter.kt
@@ -36,6 +36,7 @@ import io.element.android.libraries.architecture.Presenter
 import io.element.android.libraries.di.RoomScope
 import io.element.android.libraries.matrix.api.core.EventId
 import io.element.android.libraries.matrix.api.room.MatrixRoom
+import io.element.android.libraries.matrix.api.timeline.item.event.LocalEventSendState
 import io.element.android.libraries.preferences.api.store.AppPreferencesStore
 import kotlinx.collections.immutable.ImmutableList
 import kotlinx.collections.immutable.persistentListOf
@@ -115,12 +116,14 @@ class DefaultActionListPresenter @AssistedInject constructor(
             isEventPinned = pinnedEventIds.contains(timelineItem.eventId),
         )
 
-        val displayEmojiReactions = usersEventPermissions.canSendReaction &&
-            timelineItem.content.canReact()
-        if (actions.isNotEmpty() || displayEmojiReactions) {
+        val verifiedUserSendFailure = buildVerifiedUserSendFailure(timelineItem)
+        val displayEmojiReactions = usersEventPermissions.canSendReaction && timelineItem.content.canReact()
+
+        if (actions.isNotEmpty() || displayEmojiReactions || verifiedUserSendFailure != ActionListState.VerifiedUserSendFailure.None) {
             target.value = ActionListState.Target.Success(
                 event = timelineItem,
                 displayEmojiReactions = displayEmojiReactions,
+                verifiedUserSendFailure = verifiedUserSendFailure,
                 actions = actions.toImmutableList()
             )
         } else {
@@ -128,6 +131,32 @@ class DefaultActionListPresenter @AssistedInject constructor(
         }
     }
 
+    private suspend fun buildVerifiedUserSendFailure(
+        timelineItem: TimelineItem.Event,
+    ): ActionListState.VerifiedUserSendFailure {
+        return when (val sendState = timelineItem.localSendState) {
+            is LocalEventSendState.Failed.VerifiedUserHasUnsignedDevice -> {
+                val userId = sendState.devices.keys.firstOrNull()
+                if (userId == null) {
+                    ActionListState.VerifiedUserSendFailure.None
+                } else {
+                    val displayName = room.userDisplayName(userId).getOrNull() ?: userId.value
+                    ActionListState.VerifiedUserSendFailure.UnsignedDevice(displayName)
+                }
+            }
+            is LocalEventSendState.Failed.VerifiedUserChangedIdentity -> {
+                val userId = sendState.users.firstOrNull()
+                if (userId == null) {
+                    ActionListState.VerifiedUserSendFailure.None
+                } else {
+                    val displayName = room.userDisplayName(userId).getOrNull() ?: userId.value
+                    ActionListState.VerifiedUserSendFailure.ChangedIdentity(displayName)
+                }
+            }
+            else -> ActionListState.VerifiedUserSendFailure.None
+        }
+    }
+
     private fun buildActions(
         timelineItem: TimelineItem.Event,
         usersEventPermissions: UserEventPermissions,
diff --git a/features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/actionlist/ActionListState.kt b/features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/actionlist/ActionListState.kt
index bb3bd92fbe..614dcd3776 100644
--- a/features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/actionlist/ActionListState.kt
+++ b/features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/actionlist/ActionListState.kt
@@ -7,9 +7,12 @@
 
 package io.element.android.features.messages.impl.actionlist
 
+import androidx.compose.runtime.Composable
 import androidx.compose.runtime.Immutable
+import androidx.compose.ui.res.stringResource
 import io.element.android.features.messages.impl.actionlist.model.TimelineItemAction
 import io.element.android.features.messages.impl.timeline.model.TimelineItem
+import io.element.android.libraries.ui.strings.CommonStrings
 import kotlinx.collections.immutable.ImmutableList
 
 @Immutable
@@ -17,13 +20,31 @@ data class ActionListState(
     val target: Target,
     val eventSink: (ActionListEvents) -> Unit,
 ) {
+    @Immutable
     sealed interface Target {
         data object None : Target
         data class Loading(val event: TimelineItem.Event) : Target
         data class Success(
             val event: TimelineItem.Event,
             val displayEmojiReactions: Boolean,
+            val verifiedUserSendFailure: VerifiedUserSendFailure,
             val actions: ImmutableList<TimelineItemAction>,
         ) : Target
     }
+
+    @Immutable
+    sealed interface VerifiedUserSendFailure {
+        data object None : VerifiedUserSendFailure
+        data class UnsignedDevice(val displayName: String) : VerifiedUserSendFailure
+        data class ChangedIdentity(val displayName: String) : VerifiedUserSendFailure
+
+        @Composable
+        fun formatted(): String {
+            return when (this) {
+                is None -> ""
+                is UnsignedDevice -> stringResource(CommonStrings.screen_timeline_item_menu_send_failure_unsigned_device, displayName)
+                is ChangedIdentity -> stringResource(CommonStrings.screen_timeline_item_menu_send_failure_changed_identity, displayName)
+            }
+        }
+    }
 }
diff --git a/features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/actionlist/ActionListStateProvider.kt b/features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/actionlist/ActionListStateProvider.kt
index 722d8af11e..e53f3f11b2 100644
--- a/features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/actionlist/ActionListStateProvider.kt
+++ b/features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/actionlist/ActionListStateProvider.kt
@@ -18,6 +18,8 @@ import io.element.android.features.messages.impl.timeline.model.event.aTimelineI
 import io.element.android.features.messages.impl.timeline.model.event.aTimelineItemPollContent
 import io.element.android.features.messages.impl.timeline.model.event.aTimelineItemVideoContent
 import io.element.android.features.messages.impl.timeline.model.event.aTimelineItemVoiceContent
+import io.element.android.libraries.matrix.api.core.UserId
+import io.element.android.libraries.matrix.api.timeline.item.event.LocalEventSendState
 import io.element.android.libraries.matrix.api.timeline.item.event.MessageShield
 import kotlinx.collections.immutable.ImmutableList
 import kotlinx.collections.immutable.persistentListOf
@@ -35,6 +37,7 @@ open class ActionListStateProvider : PreviewParameterProvider<ActionListState> {
                             reactionsState = reactionsState
                         ),
                         displayEmojiReactions = true,
+                        verifiedUserSendFailure = ActionListState.VerifiedUserSendFailure.None,
                         actions = aTimelineItemActionList(),
                     )
                 ),
@@ -47,6 +50,7 @@ open class ActionListStateProvider : PreviewParameterProvider<ActionListState> {
                             reactionsState = reactionsState,
                         ),
                         displayEmojiReactions = true,
+                        verifiedUserSendFailure = ActionListState.VerifiedUserSendFailure.None,
                         actions = aTimelineItemActionList(),
                     )
                 ),
@@ -56,6 +60,7 @@ open class ActionListStateProvider : PreviewParameterProvider<ActionListState> {
                             reactionsState = reactionsState
                         ),
                         displayEmojiReactions = true,
+                        verifiedUserSendFailure = ActionListState.VerifiedUserSendFailure.None,
                         actions = aTimelineItemActionList(),
                     )
                 ),
@@ -65,6 +70,7 @@ open class ActionListStateProvider : PreviewParameterProvider<ActionListState> {
                             reactionsState = reactionsState
                         ),
                         displayEmojiReactions = true,
+                        verifiedUserSendFailure = ActionListState.VerifiedUserSendFailure.None,
                         actions = aTimelineItemActionList(),
                     )
                 ),
@@ -74,6 +80,7 @@ open class ActionListStateProvider : PreviewParameterProvider<ActionListState> {
                             reactionsState = reactionsState
                         ),
                         displayEmojiReactions = true,
+                        verifiedUserSendFailure = ActionListState.VerifiedUserSendFailure.None,
                         actions = aTimelineItemActionList(),
                     )
                 ),
@@ -83,6 +90,7 @@ open class ActionListStateProvider : PreviewParameterProvider<ActionListState> {
                             reactionsState = reactionsState
                         ),
                         displayEmojiReactions = true,
+                        verifiedUserSendFailure = ActionListState.VerifiedUserSendFailure.None,
                         actions = aTimelineItemActionList(),
                     )
                 ),
@@ -92,6 +100,7 @@ open class ActionListStateProvider : PreviewParameterProvider<ActionListState> {
                             reactionsState = reactionsState
                         ),
                         displayEmojiReactions = true,
+                        verifiedUserSendFailure = ActionListState.VerifiedUserSendFailure.None,
                         actions = aTimelineItemActionList(),
                     )
                 ),
@@ -101,6 +110,7 @@ open class ActionListStateProvider : PreviewParameterProvider<ActionListState> {
                             reactionsState = reactionsState
                         ),
                         displayEmojiReactions = false,
+                        verifiedUserSendFailure = ActionListState.VerifiedUserSendFailure.None,
                         actions = aTimelineItemActionList(),
                     ),
                 ),
@@ -110,6 +120,7 @@ open class ActionListStateProvider : PreviewParameterProvider<ActionListState> {
                             reactionsState = reactionsState
                         ),
                         displayEmojiReactions = false,
+                        verifiedUserSendFailure = ActionListState.VerifiedUserSendFailure.None,
                         actions = aTimelineItemPollActionList(),
                     ),
                 ),
@@ -120,6 +131,15 @@ open class ActionListStateProvider : PreviewParameterProvider<ActionListState> {
                             messageShield = MessageShield.UnknownDevice(isCritical = true)
                         ),
                         displayEmojiReactions = true,
+                        verifiedUserSendFailure = ActionListState.VerifiedUserSendFailure.None,
+                        actions = aTimelineItemActionList(),
+                    )
+                ),
+                anActionListState().copy(
+                    target = ActionListState.Target.Success(
+                        event = aTimelineItemEvent(),
+                        displayEmojiReactions = true,
+                        verifiedUserSendFailure = ActionListState.VerifiedUserSendFailure.UnsignedDevice(displayName = "Alice"),
                         actions = aTimelineItemActionList(),
                     )
                 ),
diff --git a/features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/actionlist/ActionListView.kt b/features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/actionlist/ActionListView.kt
index 8316bddb32..e56a1e63f5 100644
--- a/features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/actionlist/ActionListView.kt
+++ b/features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/actionlist/ActionListView.kt
@@ -27,6 +27,7 @@ import androidx.compose.foundation.lazy.items
 import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.material.ripple.rememberRipple
 import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.ListItemDefaults
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.rememberModalBottomSheetState
 import androidx.compose.runtime.Composable
@@ -90,6 +91,7 @@ fun ActionListView(
     onSelectAction: (action: TimelineItemAction, TimelineItem.Event) -> Unit,
     onEmojiReactionClick: (String, TimelineItem.Event) -> Unit,
     onCustomReactionClick: (TimelineItem.Event) -> Unit,
+    onVerifiedUserSendFailureClick: (TimelineItem.Event) -> Unit,
     modifier: Modifier = Modifier,
 ) {
     val sheetState = rememberModalBottomSheetState()
@@ -126,6 +128,14 @@ fun ActionListView(
         state.eventSink(ActionListEvents.Clear)
     }
 
+    fun onVerifiedUserSendFailureClick() {
+        if (targetItem == null) return
+        sheetState.hide(coroutineScope) {
+            state.eventSink(ActionListEvents.Clear)
+            onVerifiedUserSendFailureClick(targetItem)
+        }
+    }
+
     if (targetItem != null) {
         ModalBottomSheet(
             sheetState = sheetState,
@@ -137,6 +147,7 @@ fun ActionListView(
                 onActionClick = ::onItemActionClick,
                 onEmojiReactionClick = ::onEmojiReactionClick,
                 onCustomReactionClick = ::onCustomReactionClick,
+                onVerifiedUserSendFailureClick = ::onVerifiedUserSendFailureClick,
                 modifier = Modifier
                     .navigationBarsPadding()
                     .imePadding()
@@ -151,6 +162,7 @@ private fun SheetContent(
     onActionClick: (TimelineItemAction) -> Unit,
     onEmojiReactionClick: (String) -> Unit,
     onCustomReactionClick: () -> Unit,
+    onVerifiedUserSendFailureClick: () -> Unit,
     modifier: Modifier = Modifier,
 ) {
     when (val target = state.target) {
@@ -184,6 +196,16 @@ private fun SheetContent(
                         HorizontalDivider()
                     }
                 }
+                if (target.verifiedUserSendFailure != ActionListState.VerifiedUserSendFailure.None) {
+                    item {
+                        VerifiedUserSendFailureView(
+                            sendFailure = target.verifiedUserSendFailure,
+                            modifier = Modifier.fillMaxWidth(),
+                            onClick = onVerifiedUserSendFailureClick
+                        )
+                        HorizontalDivider()
+                    }
+                }
                 if (target.displayEmojiReactions) {
                     item {
                         EmojiReactionsRow(
@@ -338,6 +360,33 @@ private fun EmojiReactionsRow(
     }
 }
 
+@Composable
+private fun VerifiedUserSendFailureView(
+    sendFailure: ActionListState.VerifiedUserSendFailure,
+    onClick: () -> Unit,
+    modifier: Modifier = Modifier,
+) {
+    ListItem(
+        modifier = modifier
+            .clickable(onClick = onClick)
+            .padding(horizontal = 16.dp, vertical = 8.dp),
+        leadingContent = ListItemContent.Icon(IconSource.Vector(CompoundIcons.Error())),
+        trailingContent = ListItemContent.Icon(IconSource.Vector(CompoundIcons.ChevronRight())),
+        headlineContent = {
+            Text(
+                text = sendFailure.formatted(),
+                style = ElementTheme.typography.fontBodySmMedium,
+            )
+        },
+        colors = ListItemDefaults.colors(
+            containerColor = Color.Transparent,
+            leadingIconColor = ElementTheme.colors.iconCriticalPrimary,
+            trailingIconColor = ElementTheme.colors.iconPrimary,
+            headlineColor = ElementTheme.colors.textCriticalPrimary,
+        ),
+    )
+}
+
 @Composable
 private fun EmojiButton(
     emoji: String,
@@ -387,5 +436,6 @@ internal fun SheetContentPreview(
         onActionClick = {},
         onEmojiReactionClick = {},
         onCustomReactionClick = {},
+        onVerifiedUserSendFailureClick = {},
     )
 }
diff --git a/features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/pinned/list/PinnedMessagesListView.kt b/features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/pinned/list/PinnedMessagesListView.kt
index 8a03ed857c..f853b7c971 100644
--- a/features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/pinned/list/PinnedMessagesListView.kt
+++ b/features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/pinned/list/PinnedMessagesListView.kt
@@ -181,6 +181,7 @@ private fun PinnedMessagesListLoaded(
         onSelectAction = ::onActionSelected,
         onCustomReactionClick = {},
         onEmojiReactionClick = { _, _ -> },
+        onVerifiedUserSendFailureClick = {}
     )
     LazyColumn(
         modifier = modifier.fillMaxSize(),
diff --git a/libraries/ui-strings/src/main/res/values/localazy.xml b/libraries/ui-strings/src/main/res/values/localazy.xml
index f7c3213ba4..b4fec91a0c 100644
--- a/libraries/ui-strings/src/main/res/values/localazy.xml
+++ b/libraries/ui-strings/src/main/res/values/localazy.xml
@@ -36,6 +36,7 @@
   <string name="action_back">"Back"</string>
   <string name="action_call">"Call"</string>
   <string name="action_cancel">"Cancel"</string>
+  <string name="action_cancel_for_now">"Cancel for now"</string>
   <string name="action_choose_photo">"Choose photo"</string>
   <string name="action_clear">"Clear"</string>
   <string name="action_close">"Close"</string>
@@ -283,6 +284,12 @@ Reason: %1$s."</string>
   <string name="screen_pinned_timeline_screen_title_empty">"Pinned messages"</string>
   <string name="screen_reset_identity_confirmation_subtitle">"You\'re about to go to your %1$s account to reset your identity. Afterwards you\'ll be taken back to the app."</string>
   <string name="screen_reset_identity_confirmation_title">"Can\'t confirm? Go to your account to reset your identity."</string>
+  <string name="screen_resolve_send_failure_changed_identity_primary_button_title">"Withdraw verification and send"</string>
+  <string name="screen_resolve_send_failure_changed_identity_subtitle">"You can withdraw your verification and send this message anyway, or you can cancel for now and try again later after reverifying %1$s."</string>
+  <string name="screen_resolve_send_failure_changed_identity_title">"Your message was not sent because %1$s’s verified identity has changed"</string>
+  <string name="screen_resolve_send_failure_unsigned_device_primary_button_title">"Send message anyway"</string>
+  <string name="screen_resolve_send_failure_unsigned_device_subtitle">"%1$s is using one or more unverified devices. You can send the message anyway, or you can cancel for now and try again later after %2$s has verified all their devices."</string>
+  <string name="screen_resolve_send_failure_unsigned_device_title">"Your message was not sent because %1$s has not verified one or more devices"</string>
   <string name="screen_room_details_pinned_events_row_title">"Pinned messages"</string>
   <string name="screen_room_error_failed_processing_media">"Failed processing media to upload, please try again."</string>
   <string name="screen_room_error_failed_retrieving_user_details">"Could not retrieve user details"</string>
@@ -304,6 +311,8 @@ Reason: %1$s."</string>
   <string name="screen_share_open_google_maps">"Open in Google Maps"</string>
   <string name="screen_share_open_osm_maps">"Open in OpenStreetMap"</string>
   <string name="screen_share_this_location_action">"Share this location"</string>
+  <string name="screen_timeline_item_menu_send_failure_changed_identity">"Message not sent because %1$s’s verified identity has changed."</string>
+  <string name="screen_timeline_item_menu_send_failure_unsigned_device">"Message not sent because %1$s has not verified one or more devices."</string>
   <string name="screen_view_location_title">"Location"</string>
   <string name="settings_version_number">"Version: %1$s (%2$s)"</string>
   <string name="test_language_identifier">"en"</string>