Yeah. There's nothing in my logs to suggest it even tried making any
sort of telnet or rlogin connection.
Are you able to write a quick MPL to telnet or rlogin to something and share a snippet?
I am sure you don't use it correct :) here is a simple snippet, put it in a plain text file, save it as .mps and compile it with mplc.
begin
menucmd('IT','/addr=andr01d.zapto.org /port=9999');
end;
if my bbs is open you will connect to it. I tested the script and works 100%.
I am sure you will figure it now.
:: XQTR :: Another Droid BBS :: andr01d.zapto.org:9999 ::
xqtr@gmx.com
--- Mystic BBS v1.12 A43 2019/03/03 (Raspberry Pi/32)
* Origin: Another Droid BBS # andr01d.zapto.org:9999 (21:1/111)