Outlook IMAP

Luca Samiolo 40 Reputation points
2025-11-25T07:58:19.7433333+00:00

Good morning,

On a PC configured with IMAP and a Google Workspace mailbox, we're having the following problems in Outlook:

  1. The arrow doesn't appear when sending emails.
  2. Emails remain bold even after being processed and viewed.
  3. Outlook gets stuck in background processes and never closes properly. We need to force close it via Task Manager.

Office is already updated to the latest available version.

We use Microsoft Office 2021 32-bit.

My question: would syncing work better with 64-bit?

Thanks.

Best regards,

[Moderator note: personal info removed]

Outlook | Windows | Classic Outlook for Windows | For business
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  1. Jayden-P 12,400 Reputation points Microsoft External Staff Moderator
    2025-11-25T09:05:03.45+00:00

    Please note that our forum is a public platform, and we will modify your question to hide your personal information in the description. Kindly ensure that you hide any personal or organizational information the next time you post an error or other details to protect personal data.  

    Hi @Luca Samiolo

    Thank you for posting your question in the Microsoft Q&A forum.

    Syncing to the server can depend on many elements such as network connectivity, account configuration, mailbox size, data files and local system factors.

    64-bit Outlook can access far more memory than 32-bit (up to 128 TB virtual address space. This means it handles large mailboxes, multiple accounts, and heavy add-ins more efficiently, reducing chances of freezes or crashes during sync operations.

    For example, if you have large OST/PST files, many shared folders, or complex calendars, 64-bit Outlook generally performs better because it has more memory access than 32-bit version.

    In conclusion, 64-bit version provides a better performance than 32-bit.

    You can read here for more details:

    Choose between the 64-bit or 32-bit version of Office - Microsoft Support

    I hope this helps.


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