What steps will reproduce the problem?
1. Client A send a message to Client B after that disconnect the Lan / Wifi Connection
2. Wait sometime to let the hibernation time tick out default 300sec
3. reconnect with Client A
4. Client B get the Error that recipient is unavailable
What is the expected output? What do you see instead?
Mod Smacks in Corporation with smacks offline should store the message in the offline storage if the Client is unavailable. If the message is received correctly Client B should not recieve a transmission failed error.
What version of the product are you using? On what operating system?
Debian 9 stretch
Please provide any additional information below.
This error is most persistent with mobile phones connected eg connection aborts and bad connections.