A rule that allows blocking user MAC address in MyChat Client.

 

You can do it from a context menu by right-clicking on user's name in the chat ("Administration" -> "Block this MAC address").

 

Notice!

The filtration by MAC addresses is relevant only for MyChat Client on Window because only this client transfers its MAC address to the server. This filter does not apply to MyChat client applications with other operating systems (Linux/WEB/Android/Mac OS).

 

How to unblock MAC address?

On the server, in the section "Filters" -> "MAC filters". You can also disable or edit wrong blocking.