Hi @MarciR37. The email notification you received was to let you know that someone gave a kudo to this post that you made back in 2014. A kudo is awarded when another customer finds your post insightful or useful. When a Community user receives their first kudo, they are awarded with a badge which sends out an email to the email on file for the account, even if it is deactivated. Community logins are separate from a Constant Contact login so there was no login to the deactivated account. Hope this clears it up!
Thanks very much, Caitlin!