Stop redirecting emails.
in thunderbird I have 2 email accounts. I want to stop the outlook account from automatically redirecting all emails to my other account. I set this up a long time ago and I don't remember how it was done.
Wšykne wótegrona (1)
Most likely, this is being done at the online account, not via Thunderbird. And, depending on the account, it might be the opposite: that the receiving account online is retrieving from Outlook. It can be done either way, depending on features of the email provider. HOWEVER, I suggest checking your filters to see if Thunderbird is doing this. So, I see three conceptual possibilities.