I have an Outlook 365 problem. Some, but not all, replies do not post to my Sent folder.
I performed the following experiment:
I sent an E-mail to my forwarding address, which eventually was routed to the inbox of my live.com account.
I replied to this E-mail using the following From addresses:
My live.com default address
My forwarding address
My Spectrum address
Only the E-mail with my forwarding address as the From address is posted to the Sent folder.
The only rules I have operate on the Inbox. I don’t believe rules are a factor.
Does anyone have insight into why some forwarded E-mail, but not all forwarded E-mail, is posted to the Sent folder. My current premise is that if the From address on the reply is different from the To address on the E-mail from which the reply is sent, then the reply doesn’t get posted to the Sent folder. This premise has no logic other than observed test results.