You have archived or deleted hundreds of emails from your Outlook mailbox to free up space. But the warning that your mailbox is almost full or over its limit still appears. This happens because Outlook and the Exchange server do not update the mailbox size immediately after a cleanup. The server still sees the old … Read more
You have set up color categories in a shared mailbox, but those categories do not appear when another user opens the same mailbox. The categories you assign to emails or calendar items stay visible only to you. This problem occurs because Outlook stores categories in a local data file by default, not on the Exchange … Read more
When you search in Outlook, results from your Online Archive mailbox are missing. This happens even when you know the email exists in the archive folder. The root cause is that Outlook search defaults to the primary mailbox index and does not automatically include the Online Archive index. This article explains why this separation occurs … Read more
When you update a contact’s email address in Outlook, the autocomplete list may still display the old address when you start typing in the To field. This happens because Outlook stores a separate nickname cache that is not automatically refreshed when a contact changes. This article explains why the nickname cache overrides the updated address … Read more
You open an email in the new Outlook for Windows, but the suggested reply buttons — Quick Reply, Short Reply, and the three suggested responses — do not appear. This feature, which uses AI to generate short replies, can stop working after an update or when certain settings are changed. The problem usually happens because … Read more
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
When you send an email from a shared mailbox in Outlook, the sent message often appears in your personal mailbox Sent Items folder instead of the shared mailbox Sent Items. This happens because Outlook by default saves sent items to the sending account, not the mailbox from which the message was sent. This article explains … Read more
When you receive a calendar invitation in Outlook, the meeting request appears as an attached .ics file instead of opening directly in your calendar. This behavior happens when Outlook cannot properly interpret the meeting request format or when a file association mapping has been corrupted. The .ics file contains the meeting details but requires you … Read more
You created an Outlook rule to move emails from a specific sender to a folder, but those emails still appear in your Junk Email folder. This happens because Outlook runs server-side rules before the junk filter processes incoming mail. If a rule moves a message to another folder, the junk filter never inspects that message. … Read more
In the new Outlook for Windows, users often find they cannot pin a shared mailbox folder to the navigation pane. The pin icon is missing or grayed out, making it impossible to keep the folder visible. This happens because the new Outlook uses a different mailbox storage model than classic Outlook, where shared mailboxes are … Read more