TID: Mystic BBS 1.12 A47
MSGID: 1:218/860 c660cc8e
REPLY: 1:282/1038@fidonet.org 63feb3e9
TZUTC: 0000
 RV> mbbs.casacam.net
 RV> Port 23

The hostname resolves to 192.168.0.77 here, which is really strange.

You are not connectable at this host, owing to the IP address being in a
private net. 

Your DNS settings need a tweak.

--- Mystic BBS v1.12 A47 2021/12/24 (Linux/64)
 * Origin: Shipwrecks & Shibboleths [San Francisco, CA - USA] (1:218/860)
SEEN-BY: 1/123 10/0 1 15/0 18/200 90/1 102/401 103/1 705 105/81 106/201
SEEN-BY: 123/131 129/305 153/7715 214/22 218/0 1 215 501 700 720 810
SEEN-BY: 218/820 840 850 860 880 226/30 227/114 229/111 112 113 206
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SEEN-BY: 282/1038 301/1 317/3 320/219 322/757 342/200 396/45 460/58
SEEN-BY: 633/280 712/848
PATH: 218/860 700 229/426