diff --git a/component/config.go b/component/config.go
index b72927d..ebd29d3 100644
--- a/component/config.go
+++ b/component/config.go
@@ -29,6 +29,7 @@ func (c *Config) Start() error {
 	router.NewRoute().IQNamespaces(stanza.NSDiscoItems).HandlerFunc(c.handleDiscoItems)
 	router.HandleFunc("iq", c.handleIQ)
 	router.HandleFunc("message", c.handleMessage)
+	router.HandleFunc("presence", c.handleMessage)
 
 	c.xmpp, err = xmpp.NewComponent(xmpp.ComponentOptions{
 		Domain:   c.Host,
diff --git a/component/receiver.go b/component/receiver.go
index 29a20c8..0c8558e 100644
--- a/component/receiver.go
+++ b/component/receiver.go
@@ -31,6 +31,7 @@ func (c *Config) handleDiscoInfo(s xmpp.Sender, p stanza.Packet) {
 			{Var: stanza.NSMsgReceipts},
 			{Var: stanza.NSMsgChatMarkers},
 			{Var: stanza.NSMsgChatStateNotifications},
+			{Var: "http://jabber.org/protocol/muc"},
 		},
 	}
 	if discoInfo.Node == "" {
@@ -98,15 +99,20 @@ func (c *Config) handleIQ(s xmpp.Sender, p stanza.Packet) {
 }
 func (c *Config) handleMessage(s xmpp.Sender, p stanza.Packet) {
 	msg, ok := p.(stanza.Message)
+	attr := msg.Attrs
 	if !ok {
-		return
+		pr, ok := p.(stanza.Message)
+		attr = pr.Attrs
+		if !ok {
+			return
+		}
 	}
 	if c.XMPPDebug {
 		log.WithFields(map[string]interface{}{
 			"type": c.Type,
 			"from": s,
-			"to":   msg.To,
-			"id":   msg.Id,
+			"to":   attr.To,
+			"id":   attr.Id,
 		}).Debug(msg.XMPPFormat())
 	}
 	c.comp.Send(p)
diff --git a/component/threema/bot.go b/component/threema/bot.go
index ab1c76a..ade9b31 100644
--- a/component/threema/bot.go
+++ b/component/threema/bot.go
@@ -26,8 +26,8 @@ func (t *Threema) getBot(jid *models.JID) *Bot {
 	if db := database.Read; db != nil && db.DB().Ping() == nil {
 		if err := db.Where(jid).First(jid); err.RecordNotFound() {
 			database.Write.Create(jid)
-		} else if err != nil {
-			log.Errorf("error getting jid %s from datatbase: %s", jid.String(), err.Error)
+		} else if err.Error != nil {
+			log.Errorf("error getting jid %s from database: %s", jid.String(), err.Error)
 		}
 	}
 	bot := &Bot{
diff --git a/component/threema/main.go b/component/threema/main.go
index 1b237bd..43406ef 100644
--- a/component/threema/main.go
+++ b/component/threema/main.go
@@ -67,6 +67,9 @@ func (t *Threema) Send(packet stanza.Packet) {
 }
 func (t *Threema) send(packet stanza.Packet) stanza.Packet {
 	switch p := packet.(type) {
+	case stanza.Presence:
+		log.Debug(p)
+		return nil
 	case stanza.Message:
 		from := models.ParseJID(p.Attrs.From)
 		to := models.ParseJID(p.Attrs.To)
diff --git a/component/threema/send.go b/component/threema/send.go
index defaa2c..54743d0 100644
--- a/component/threema/send.go
+++ b/component/threema/send.go
@@ -1,7 +1,9 @@
 package threema
 
 import (
+	"encoding/base32"
 	"strconv"
+	"strings"
 
 	"github.com/bdlm/log"
 	"github.com/o3ma/o3"
@@ -32,6 +34,18 @@ func (a *Account) sending(to string, msg stanza.Message) (o3.Message, error) {
 		Recipient: o3.NewIDString(to),
 		PubNick:   a.ThreemaID.Nick,
 	}
+	var groupHeader *o3.GroupMessageHeader
+	if msg.Type == stanza.MessageTypeGroupchat {
+		toA := strings.SplitN(to, "-", 2)
+		gid, err := base32.StdEncoding.DecodeString(toA[1])
+		if err != nil {
+			return nil, err
+		}
+		groupHeader = &o3.GroupMessageHeader{
+			CreatorID: o3.NewIDString(toA[0]),
+		}
+		copy(groupHeader.GroupID[:], gid)
+	}
 	chatState := false
 	chatStateComposing := false
 
@@ -102,12 +116,21 @@ func (a *Account) sending(to string, msg stanza.Message) (o3.Message, error) {
 		MessageHeader: header,
 		Body:          msg.Body,
 	}
-	a.deliveredMSG[msg3ID] = msg.Id
-	a.readedMSG[msg3ID] = msg.Id
-	logger.WithFields(map[string]interface{}{
+	logger = logger.WithFields(map[string]interface{}{
 		"x_id": msg.Id,
 		"t_id": msg3ID,
 		"text": msg.Body,
-	}).Debug("send text")
+	})
+	if groupHeader != nil {
+		logger.Debug("send grouptext")
+		// TODO iterate of all occupants
+		return &o3.GroupTextMessage{
+			GroupMessageHeader: groupHeader,
+			TextMessage:        msg3,
+		}, nil
+	}
+	a.deliveredMSG[msg3ID] = msg.Id
+	a.readedMSG[msg3ID] = msg.Id
+	logger.Debug("send text")
 	return msg3, nil
 }