Not only am I scatterbrained, I am finding it impossible to find old exchanges on here and I haven't yet set up my own independent archives.
My e-mails are bre(at)pagekite.net and at mailpile.is.
@h4ck3r9 The only "server" aspect of Mailpile is the web user interface. In nearly all other respects Mailpile is a client.
Mailpile does not expose an IMAP4 or POP3 server (or JMAP). So you cannot access it using k9mail.
I read mail on my phone by using my phone's browser to visit my Mailpile's web UI.