PT> I have tried every settings even using Mystic Mail server with username
 PT> and password with no login information and it keeps failing to send out
 PT> the e-mail validation info.

Okay thanks for providing your setup.  It looks like you're setting Mystic up to connect to its own SMTP server.

In order for e-mail to be sent out you have to have access to an external SMTP server from a mail provider, so Mystic can send mail to it.  Most people used to use Gmail but I am not sure if Google still allows it for free.

 PT> ßßßßßßßßßßßßßßßß General Options ßßßßßßßßßßßßßßß
 PT> 
 PT>   Domain Name      ³ mysticbbs.dynv6.net
 PT>   Max BBS Nodes    ³ 20



... That's not a bug, it's an undocumented feature

--- Mystic BBS v1.12 A48 2022/04/26 (Windows/64)