Is there any way to do whitelisting? I just tried out NNTP yesterday and my client got blacklisted a couple of times?
Yes. Whitelist.txt in DATA. You can also adjust the auto-banning options or disable it in the server settings for that server.
--- Mystic BBS v1.12 A36 2017/11/25 (Windows/64)
* Origin: Sector 7 [Mystic BBS WHQ] (21:1/108)