Sent Messages Showing up in Inbox
Since upgrading to Ventura, many of my Sent emails are showing up in my Inboxes on Mac Mail. This does not seem to happen for all messages, only some, and I can't figure out how to turn off this feature (If it is, in fact, a feature and not a bug).
I have 3 mail accounts in my Mac Mail--two are Exchange accounts and one is a gmail alias account. It seems to be happening indiscriminately, but with all three at various times.
I welcome input from this community! Thanks!
MacBook Pro 13″, macOS 10.15