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  • microsoft-365-l1-desktop-support-mailbox-storage-troubleshooting


     

    microsoft-365-l1-desktop-support-mailbox-storage-troubleshooting

     


    Microsoft-365-L1-Desktop-Support-guide


    This article is designed as a practical, real-world L1 Desktop Support guide focused on troubleshooting Microsoft Outlook within a Microsoft 365 and Exchange Online environment. The goal is to help support engineers understand not just what to fix, but how to think during real helpdesk scenarios — from basic configuration to admin-level checks. Each section is structured around common ticket categories faced in enterprise environments. Whether you are preparing for an IT support role, improving troubleshooting workflow, or strengthening Microsoft 365 operational knowledge, this series will provide structured, actionable guidance. The content bridges the gap between end-user issues and Microsoft 365 Admin Center/Exchange Online workflows used by support teams daily. Outlook License Issue

    I will write article on each topic for single single blog -


    I’ll break into real helpdesk categories:

    1. Account & License Management
    2. Outlook Configuration
    3. Send/Receive Issues
    4. Profile & OST/PST Issues
    5. Performance Issues
    6. Mailbox & Storage
    7. Archive & Backup
    8. Exchange Admin Checks
    9. Authentication/Login Problems
    10. Common Errors & Fixes

     

    Today we will see step by step Account & License Management  

     

     Archive Emails

     

    As per ITIL approach -

    Step 1 - user verification 
    step 2 - Initial L1 checks
    step 3 - TroubleShooting
    step 4 - Escalation 



    like we can say when we are facing Storage full issue
    so 

    use this method

    Manual Archive
    File → Tools → Clean Up Old Items

    Auto Archive
    Options → Advanced → AutoArchive Settings

    Online Archive (Exchange Admin)
    Admin Portal → User → Mailbox → Enable Archive



    Check in:
    admin.microsoft.com

    or

    exchange admin center 
    Solutions:

    archive old emalis manualy or automatically using outlook's archive feature.
    = Empty deleted items and junk folders.
    = Create a new PST file and oldder email to it.
    = if on exchange, check with the admin to increase mailbox size (if policy 
    allows).



    Disclaimer



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