The big questions are:

Are you seeing her again?

Do you recommend her?

If yes to the second question, let us/me know.

I may not delete them right away but none of them stay around for long.

to deal with email.  

This system may be overkill, but it's easy to set up and use:
use a proxy, and set the location to somewhere plausible if the proxy allows  
use online mail only (no email on your computer),  
set preferences to delete messages after a period of time (the only messages kept are ones you consciously choose to archive)  
 email addresses:   one used for initial and routine contact and change it regularly
and a second hobby email preserved unchanged only for people you are comfortable remaining in contact with

All that said, email is less effective these days for hobbying anyway.  All the forms of messaging have made people pay much less attention to email.  And that's a shame, cause it worked really well for a while. But it's time to make sure you know how to tweet discreet.

END OF MESSAGE

I'm pretty sure that we are talking about the same provider. I don't think that it came from her. I agree things on the internet stay out there even if you think they are long gone.

Possibly if someone who is a provider who knows her well enough to vouch for her as being safe and legit.
Maybe one of the ladies who worked with her and kept in touch and know the she is safe would help
her imencly.
The other possibility would be a couple of respected clients  who may have seen her since resurfacing.
Someone must have done something as now on P411 but not sure how that amount got activated.
I have no idea how a provider who drops off comes back there but would sure like to know.

Yes I got the letter too and never saw her and only had one communication to her before.
That was after she went dark

I fully expect providers to have different approaches, and want them to keep enough info to  
a) keep safe
b) be able to clear me

For my part I'm just trying to make sure that if someone gets into my computer there is nothing there.
And nothing to connect me to some anonymous data/accounts out there in the ether.