Forum Discussion

shannonulmer65's avatar
shannonulmer65
Copper Contributor
Sep 09, 2024

Accessing a PST file after changing ISPs

I've been using Outlook as a desktop client (via POP3 from my old ISP) for years.  I recently changed ISPs and before they stopped my email service, I backed my mailbox to a PST file.  


Once my ISP turned off my email (and made my prior email ID/PW deactivated), I can no longer open the PST file because it tries to first authenticate to my old ISP and can't reconcile the credentials (since they are no longer valid).  My question...how do I get access to years worth of emails and key data now locked in a PST that I can't open?  I've seen PST readers online but I'm leery of downloading apps to my PC that could do malware. 

3 Replies

  • pradeepkatiyar's avatar
    pradeepkatiyar
    Copper Contributor

    Hi shannonulmer65 did you try to open your PST file with any free PST file viewer? This is only for confirmation because sometimes PST files get corrupted and locked with the password you have forgotten. Good luck with this. 

    Can you please specify the issue such as which ISP you used before? and what kind of issue occurs when you open the PST file. So that I can understand your situation and suggest a better solution for your PST file.

  • Hi,
    - is your old ISP connection still configured in Outlook? If so, remove that.
    - did you already try creating a new Outlook profile; and open that .pst with the new profile?

Resources