diff --git a/src/network/network_server.cpp b/src/network/network_server.cpp
--- a/src/network/network_server.cpp
+++ b/src/network/network_server.cpp
@@ -671,6 +671,28 @@ NetworkRecvStatus ServerNetworkGameSocke
 }
 
 /**
+ * Send a chat message from external source.
+ * @param source Name of the source this message came from.
+ * @param colour TextColour to use for the message.
+ * @param user Name of the user who sent the messsage.
+ * @param msg The actual message.
+ */
+NetworkRecvStatus ServerNetworkGameSocketHandler::SendExternalChat(const std::string &source, TextColour colour, const std::string &user, const std::string &msg)
+{
+	if (this->status < STATUS_PRE_ACTIVE) return NETWORK_RECV_STATUS_OKAY;
+
+	Packet *p = new Packet(PACKET_SERVER_EXTERNAL_CHAT);
+
+	p->Send_string(source);
+	p->Send_uint16(colour);
+	p->Send_string(user);
+	p->Send_string(msg);
+
+	this->SendPacket(p);
+	return NETWORK_RECV_STATUS_OKAY;
+}
+
+/**
  * Tell the client another client quit with an error.
  * @param client_id The client that quit.
  * @param errorno The reason the client quit.
@@ -1262,12 +1284,27 @@ void NetworkServerSendChat(NetworkAction
 
 			ci = NetworkClientInfo::GetByClientID(from_id);
 			if (ci != nullptr) {
-				NetworkTextMessage(action, GetDrawStringCompanyColour(ci->client_playas), false, ci->client_name, msg, data);
+				NetworkTextMessage(action, GetDrawStringCompanyColour(ci->client_playas), false, ci->client_name, msg, data, "");
 			}
 			break;
 	}
 }
 
+/**
+ * Send a chat message from external source.
+ * @param source Name of the source this message came from.
+ * @param colour TextColour to use for the message.
+ * @param user Name of the user who sent the messsage.
+ * @param msg The actual message.
+ */
+void NetworkServerSendExternalChat(const std::string &source, TextColour colour, const std::string &user, const std::string &msg)
+{
+	for (NetworkClientSocket *cs : NetworkClientSocket::Iterate()) {
+		cs->SendExternalChat(source, colour, user, msg);
+	}
+	NetworkTextMessage(NETWORK_ACTION_EXTERNAL_CHAT, colour, false, user, msg, 0, source);
+}
+
 NetworkRecvStatus ServerNetworkGameSocketHandler::Receive_CLIENT_CHAT(Packet *p)
 {
 	if (this->status < STATUS_PRE_ACTIVE) {