Sending / Receiving
- What do the symbols next to a message mean?
- Why do messages to certain contacts not appear as read?
- How can I tell whether the app is connected to the server?
- Why are incoming messages sometimes delayed or only arrive once I open the app?
- How can I send emojis?
- Why don't previews in push notifications work properly?
- Why doesn’t my chat partner receive my messages?
- How can I make sure this is working when I don't know anybody who has installed it yet?
- How long do messages stay in queue for delivery?
- I am receiving unwanted messages. What can I do?
- Why can't I send a video?
- How can I mute individual chats?
- What does it cost to send a message?
- Which ports need to be open on my network?
Why doesn’t my chat partner receive my messages?
Problems with sending messages can have different causes. Please proceed as follows:
- Please send a message to the ID ECHOECHO. If this works and you receive a response, you're fully able to send and receive messages, and the problem is most likely on the recipient's side.
- Make sure that the Threema ID displayed for the contact you want to reach is still actively used by the recipient. The recipient might be using a new ID, in which case messages to the old ID are being misrouted. This can easily be prevented by deleting old IDs and removing duplicate contacts.
- Maybe your ID has been unintentionally blocked by the recipient. Ask the recipient to check this in your own contact's details (iOS: Contacts > Contact details > “Block contact” (at the very bottom); Android: Threema > Contacts > Tap and hold on the contact > Settings > “Deblock contact”). Please also make sure that you have not blocked the recipient yourself.