I have been working at setting up TLS/SSL on my Debian/Postfix mailserver and installing a CA-verified certificate. Yesterday I made a few tweaks, and suddenly found that on one account I was not getting any messages via POP. I was still able to access the account e-mails via IMAP but lost POP access - no error message, but "no new messages on server", despite the fact that there were. I looked at the /var/mail directory and discovered that my e-mails have suddenly begun being stored in my Home directory mbox. All other accounts seem to be working fine . . . Any suggestions on what to look at? I will post main.cf and other pertinent info if anyone wants to review them.