BBS sysops and retro nerds: seeking BBS with email

I am seeking a BBS or retro network that offers secure Internet email 
with POP3 or IMAP access with SSL/TLS. Bonus if it can relay messages to 
and from from FIDONET / DOVE-NET or other boutique networks.

The benefit to me is that these small system network ops take great care 
of their customers, and they don't have artificial intelligence 
algorithms scanning the messages, or loon employees doxing people's emails.

Free or paid is fine.

What are the options?

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Tengri Temujin