How to prevent sending message after reconnect in ejabberd

Question

Suppose we have client A and client B.

client A has connection to jabber.
client B has no connection to jabber.

client A sends "hello" message to B. when client B reconnected to ejabberd will receive "hello" message.

i want client B only receive "hello" message when it connected to ejabberd.

i commented mod_offline module in ejabbed config file, but didn't solve problem.

Answer 1

If you comment mod_offline, then messages sent to offline users are not stored, they are lost.

If client B logins with negative priority, it does not receive offline messages. Later when the client sets a positive priority, it receives all the offline messages.