diff --git a/mod/item.php b/mod/item.php
index b064bbce8e..1fccbca4d6 100644
--- a/mod/item.php
+++ b/mod/item.php
@@ -40,6 +40,7 @@ use Friendica\Util\DateTimeFormat;
 use Friendica\Util\Emailer;
 use Friendica\Util\Security;
 use Friendica\Util\Strings;
+use Friendica\Worker\Delivery;
 
 require_once 'include/items.php';
 
@@ -603,7 +604,7 @@ function item_post(App $a) {
 		$origin = $_REQUEST['origin'];
 	}
 
-	$notify_type = ($toplevel_item_id ? 'comment-new' : 'wall-new');
+	$notify_type = ($toplevel_item_id ? Delivery::COMMENT : Delivery::POST);
 
 	$uri = ($message_id ? $message_id : Item::newURI($api_source ? $profile_uid : $uid, $guid));
 
diff --git a/src/Model/Item.php b/src/Model/Item.php
index 8ae412cd0a..e57b3cbd3c 100644
--- a/src/Model/Item.php
+++ b/src/Model/Item.php
@@ -28,6 +28,7 @@ use Friendica\Util\Network;
 use Friendica\Util\Security;
 use Friendica\Util\Strings;
 use Friendica\Util\XML;
+use Friendica\Worker\Delivery;
 use Text_LanguageDetect;
 
 class Item extends BaseObject
@@ -1521,7 +1522,7 @@ class Item extends BaseObject
 			$allow_gid = $item['allow_gid'];
 			$deny_cid  = $item['deny_cid'];
 			$deny_gid  = $item['deny_gid'];
-			$notify_type = 'wall-new';
+			$notify_type = Delivery::POST;
 		} else {
 			// find the parent and snarf the item id and ACLs
 			// and anything else we need to inherit
@@ -1558,8 +1559,8 @@ class Item extends BaseObject
 				$allow_gid      = $parent['allow_gid'];
 				$deny_cid       = $parent['deny_cid'];
 				$deny_gid       = $parent['deny_gid'];
-				$item['wall']    = $parent['wall'];
-				$notify_type    = 'comment-new';
+				$item['wall']   = $parent['wall'];
+				$notify_type    = Delivery::COMMENT;
 
 				/*
 				 * If the parent is private, force privacy for the entire conversation
@@ -1603,6 +1604,10 @@ class Item extends BaseObject
 			}
 		}
 
+		if (stristr($item['verb'], ACTIVITY_POKE)) {
+			$notify_type = Delivery::POKE;
+		}
+
 		$item['parent-uri-id'] = ItemURI::getIdByURI($item['parent-uri']);
 		$item['thr-parent-id'] = ItemURI::getIdByURI($item['thr-parent']);
 
@@ -1881,11 +1886,13 @@ class Item extends BaseObject
 			Worker::add(['priority' => $priority, 'dont_fork' => true], 'Notifier', $notify_type, $current_post);
 		} elseif ($item['visible'] && ((!empty($parent) && $parent['origin']) || $item['origin'])) {
 			if ($item['gravity'] == GRAVITY_ACTIVITY) {
-				$cmd = $item['origin'] ? 'activity-new' : 'activity-import';
+				$cmd = $item['origin'] ? Delivery::ACTIVITY : 'activity-import';
 			} elseif ($item['gravity'] == GRAVITY_COMMENT) {
-				$cmd = $item['origin'] ? 'comment-new' : 'comment-import';
+				$cmd = $item['origin'] ? Delivery::COMMENT : 'comment-import';
+			} elseif (!empty($notify_type)) {
+				$cmd = $notify_type;
 			} else {
-				$cmd = 'wall-new';
+				$cmd = Delivery::POST;
 			}
 
 			Worker::add(['priority' => $priority, 'dont_fork' => true], 'Notifier', $cmd, $current_post);
diff --git a/src/Protocol/Diaspora.php b/src/Protocol/Diaspora.php
index e341de2080..ac1cf9c38d 100644
--- a/src/Protocol/Diaspora.php
+++ b/src/Protocol/Diaspora.php
@@ -37,6 +37,7 @@ use Friendica\Util\Map;
 use Friendica\Util\Network;
 use Friendica\Util\Strings;
 use Friendica\Util\XML;
+use Friendica\Worker\Delivery;
 use SimpleXMLElement;
 
 /**
@@ -2148,9 +2149,9 @@ class Diaspora
 				continue;
 			}
 			if ($comment['verb'] == ACTIVITY_POST) {
-				$cmd = $comment['self'] ? 'comment-new' : 'comment-import';
+				$cmd = $comment['self'] ? Delivery::COMMENT : 'comment-import';
 			} else {
-				$cmd = $comment['self'] ? 'like' : 'comment-import';
+				$cmd = $comment['self'] ? Delivery::ACTIVITY : 'activity-import';
 			}
 			Logger::log("Send ".$cmd." for item ".$comment['id']." to contact ".$contact_id, Logger::DEBUG);
 			Worker::add(PRIORITY_HIGH, 'Delivery', $cmd, $comment['id'], $contact_id);
diff --git a/src/Worker/APDelivery.php b/src/Worker/APDelivery.php
index 25c1dfb719..632f6cffc5 100644
--- a/src/Worker/APDelivery.php
+++ b/src/Worker/APDelivery.php
@@ -37,6 +37,9 @@ class APDelivery extends BaseObject
 		} elseif ($cmd == Delivery::SUGGESTION) {
 			$success = ActivityPub\Transmitter::sendContactSuggestion($uid, $inbox, $target_id);
 		} elseif ($cmd == Delivery::RELOCATION) {
+			// @todo Implementation pending
+		} elseif ($cmd == Delivery::POKE) {
+			// Implementation not planned
 		} elseif ($cmd == Delivery::REMOVAL) {
 			$success = ActivityPub\Transmitter::sendProfileDeletion($uid, $inbox);
 		} elseif ($cmd == Delivery::PROFILEUPDATE) {
diff --git a/src/Worker/Delivery.php b/src/Worker/Delivery.php
index 6cd8243651..97bc58ef67 100644
--- a/src/Worker/Delivery.php
+++ b/src/Worker/Delivery.php
@@ -26,7 +26,9 @@ class Delivery extends BaseObject
 	const RELOCATION    = 'relocate';
 	const DELETION      = 'drop';
 	const POST          = 'wall-new';
+	const POKE          = 'poke';
 	const COMMENT       = 'comment-new';
+	const ACTIVITY      = 'activity-new';
 	const REMOVAL       = 'removeme';
 	const PROFILEUPDATE = 'profileupdate';
 
diff --git a/src/Worker/Notifier.php b/src/Worker/Notifier.php
index 5094734808..c2f61c55a4 100644
--- a/src/Worker/Notifier.php
+++ b/src/Worker/Notifier.php
@@ -442,7 +442,7 @@ class Notifier
 					}
 
 					if (in_array($rr['network'], [Protocol::DFRN, Protocol::DIASPORA]) && ($rr['protocol'] == Protocol::ACTIVITYPUB) &&
-						!in_array($cmd, [Delivery::SUGGESTION, Delivery::REMOVAL, Delivery::RELOCATION])) {
+						!in_array($cmd, [Delivery::SUGGESTION, Delivery::REMOVAL, Delivery::RELOCATION, Delivery::POKE])) {
 						Logger::info('Contact is Friendica AP, so skipping delivery via legacy DFRN', ['url' => $rr['url']]);
 						continue;
 					}
@@ -482,7 +482,7 @@ class Notifier
 			}
 
 			if (in_array($contact['network'], [Protocol::DFRN, Protocol::DIASPORA]) && ($contact['protocol'] == Protocol::ACTIVITYPUB) &&
-				!in_array($cmd, [Delivery::SUGGESTION, Delivery::REMOVAL, Delivery::RELOCATION])) {
+				!in_array($cmd, [Delivery::SUGGESTION, Delivery::REMOVAL, Delivery::RELOCATION, Delivery::POKE])) {
 				Logger::info('Contact is Friendica AP, so skipping delivery via legacy DFRN', ['url' => $contact['url']]);
 				continue;
 			}