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I have been deleting unnecessary emails from my outlook client application, but recently observed that the emails are not being deleted from the server. My mailbox is 97% full and it is giving warning that I will not be able to send or receive emails once the mailbox is at 99%.
I am trying to delete emails, but they are keep coming back. I tried deleting emails in several ways, but the emails are not getting deleted.
Please help me in resolving this issue.
Using Classic Outlook on Windows for personal email, calendar, and contact management
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
Sorry I can’t delete some of unwanted messages but when I press delete nothing happens
Sorry I didn’t received any response
Are you using the new Outlook? If so, Microsoft is still developing it. I found this out after going directly to Support, an Agent took over my PC and set Outlook 365 up for me in Microsoft 365 (formerly Office 365).
Microsoft is not advising users of changes to the new Outlook, hence you will have surprise issues.
If you don't have 365, go back to the Classic Outlook, it is stable.
This article may be of help: Choose the right version of Outlook - Microsoft Support
I'm having the same problem with a new customer.
We're migrating their old emails from the old IMAP server to 365 Business. Problem is, the old mailbox has 350GB data. So I'm forced to use Thunderbird, since Outlook PST - after changing registry to allow unlimited size instead of 50GB - breaks over 100-120GB size. Basically, I download a bunch of mails with Thunderbird (20-30GB in a go), then upload them with via IMAP into 365, then load Outlook Classic (Exchange) and move them from the licensed mailbox into a shared (archive) mailbox.
And I'm regularly getting these undeletable mails now. Apparently something breaks when messing via IMAP or so many (hundreds of thousands) of emails or Thunderbird.
I tried everything and the solutions didn't work so now I'm using a temp 365 mailbox with a Business Basic license for the process, and any time it breaks - getting 10-20-30GB undeletable mails eventually - I just delete the entire M365 user account and recreate it fresh, re-add the license and continue.
Pro tip: do not ever put 350GB email in a linux-based IMAP mailbox because it will break everything.
Tried:
Funny, but I just had one such batch of 15GB / 8000 emails, where I could delete half of them via OWA but the rest, they just won't go away.
These e-mails are only visible in OWA, IMAP or Exchange client does not show them.
Also, Thunderbird randomly stops processing the upload after 100-4000 emails.
Just... don't do this. Please. If your (old) admin says it'll be fine, run.
I haven't been able to get to my email to delete or junk mail. Every time I press the button it blanks out and says there's a problem retry. I've done it over and over and I still can't simply delete the emails and junk mails that I had no problem with before