After a Microsoft Teams chat, the Conversation History folder in Outlook may disappear from the folder pane. This happens when the folder is accidentally deleted, moved, or hidden due to a synchronization error between Teams and Exchange. The folder stores copies of Teams chat messages in your mailbox, and its absence prevents new chat history … Read more
You have set up your email signature in Outlook on your work computer, but when you log into Outlook on another PC, the signature is missing or outdated. This happens because Outlook signature roaming relies on Microsoft 365 roaming settings, which can fail due to incorrect configuration or sync delays. This article explains why the … Read more
You have a local PST file with archived emails, but the new Outlook for Windows cannot open it. The new Outlook is a cloud-first client that connects only to Exchange Online, Microsoft 365, or IMAP accounts. Local PST files are not supported in this version. This article explains why PST files are blocked in the … Read more
After migrating your Outlook mailbox to a new server, Exchange environment, or Microsoft 365 tenant, you may notice that your inbox rules execute twice for every incoming message. Each rule applies its action — moving, copying, flagging, or forwarding a message — two times instead of once. This duplication typically occurs because two rule collections … Read more
After a user is renamed in Microsoft 365 or their display name is changed in Exchange Online, Outlook in Cached Exchange Mode may continue to show the old mailbox name in the folder pane. This happens even after restarting Outlook or waiting for the offline address book to update. The root cause is a locally … Read more
You started a mailbox repair or OST file rebuild in Outlook, but it freezes at the phrase “Updating Inbox” for hours. This leaves your email inaccessible and your calendar blank. The problem occurs when the local OST file is corrupted or when Windows Search tries to index a damaged item during the rebuild. This article … Read more
You manage a recurring meeting in Outlook and later find duplicate exceptions in the series. A single change you made to one instance now shows twice in the meeting tracking, confusing attendees and cluttering the calendar. This problem occurs when Outlook writes an exception entry to the calendar item but fails to remove a previous … Read more
When you search in Outlook, the results list may show old emails at the top while newer messages appear lower down or are missing entirely. This problem occurs because the Outlook search index is corrupted, outdated, or not updating in real time. A broken index can happen after a Windows update, a large mailbox import, … Read more
You open a draft on your laptop, make a few edits, and then find the same draft appears as a second copy on your phone. This duplication happens because Outlook syncs drafts through the server, but each device can create a new version of the draft instead of updating the original. The root cause is … Read more
When you send an email from a shared mailbox in Outlook, the sent message often disappears from your Sent Items folder. This happens because Outlook saves a copy of the sent email to the shared mailbox’s Sent Items folder instead of your own. You may see no confirmation that the email was saved at all, … Read more