Forum Discussion
achimdet
Jul 30, 2025Copper Contributor
Outlook emails not sending (Error code: 0x80070005-0x000004dc-0x00000524)
I am going out of my mind and NEED HELP. PLEASE! :) A few days ago, my personal Hotmail account (no company Exchange etc) started to bounce back emails I send from or reply to from my Outlook clien...
Kurapya
Jul 31, 2025Brass Contributor
Runoutlook.exe /safeto enter safe mode and test sending emails. Use icacls %localappdata%\Microsoft\Outlook /resetto repair permissions, and then check if the antivirus software is blocking SMTP traffic.
achimdet
Jul 31, 2025Copper Contributor
Hi Kurapya! Thanks for the ideas! I executed the first two, but unfortunately am still experiencing the same problem. For antivirus, I am just using Windows Security and have not made any recent changes. How would I check if it blocks SMTP traffic? And any other ideas? Thank you so much!