Mail from a shared mailbox lands in my own Sent, not the shared one
Default Microsoft 365 behaviour unless the shared-mailbox setting is enabled. Each colleague sees their own half, nobody sees the whole.
Try this first
- 1Ask your admin to enable 'copy items to shared mailbox' on the shared mailbox.
- 2Close Outlook once and reopen; the change does not always take effect in a running session.
- 3Send a test message from the shared mailbox and check it now appears in shared Sent Items.
- 4Old mail will not back-fill; from now on it works. Tell colleagues so they do not hunt for history.
When to bring us in
Ask your admin; we can flip it for you if you do not have admin access.
See also
- Our emails land in spam for some recipientsAlmost always an SPF, DKIM, or DMARC setting that is wrong or missing, or a sender name that mimics a well-known brand.
- Someone reports receiving phishing emails "from us"Read: spoofing. Someone is abusing your sender name, not necessarily your actual mailbox.
- An email bounces (NDR): delivery failedThe NDR text usually states the exact reason. Reading it is step one.
None of the above fits?
Describe your situation below. We pass your input plus the steps you already saw to our AI and return tailored next-step advice. If it's too risky to DIY, we'll say so.
Or skip the DIY entirely
Our Managed IT clients do not look these things up. One point of contact, a fixed monthly price, resolved within working hours.