Check that it's still set in account settings. Look under Copies & Folders.

Hello! Thank you for your reply! I wasn't sure where to look or what to do in "copies & folders" in Thunderbird ... it wasn't that I had set the configuration to ALWAYS BCC me, but only emails I manually BCC'd so that I would remember to follow up.

That said ... I went to my email provider portal (where I import into Thunderbird from) ... and in poking around I found that there was a setting for spam folders of a "safelist" ... I added my own email address in there ... sent a test ... and it worked ... I had BCCd a copy to myself and it did appear in my inbox. Not sure why all of a sudden this was necessary, but I do have an email in to our email provider so I can find out.

Again, I thank you for your help. I do appreciate the time you took to assist me.

~Beth