In Thunderbird, on one email account, the emails appear to be filtered but there is no obvious filter set.
I have been using Thunderbird for a fairly long time and have several email accounts in it. Today, I noticed that one of my accounts seems to be filtering the messages for one type of message. When I login to the email account directly, I see all of the messages. I don't have any filters set - none of the filter buttons are on, there is no filter in the filter text box and there are no filters in Tools->Message Filters.
All Replies (4)
mentioning the provider is a huge bonus in these sort of things. Like Google offers an important folder that messes up what they do with the inbox for some circumstances
The email provider is Yahoo
...and the emails that are shown in that email account are Yahoo related
Do you perhaps have yahoo entered in the quick filter bar