Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Why is my Junk mail setting all of a sudden marking all my email as junk and moving to the junk mail folder?

  • 3 replies
  • 5 have this problem
  • 3 views
  • Last reply by cjlarkin

more options

When opening up my email this morning, all of a sudden they disappeared into my Junk mail folder. These were all valid emails that had not been previously marked as Junk. When I tried to retrieve them back, they each were automatically marked Junk and moved back to the junk folder. I tried unmarking each individually and as a batch. As soon as I designated not junk, I watched them get marked and moved. I have turned off the Junk mail options for now, but that is one of my favorite things about Thunderbird that I like. Why is this happening all of a sudden? I am currently running Windows 10, and had not been having an issues until today (8/29).

When opening up my email this morning, all of a sudden they disappeared into my Junk mail folder. These were all valid emails that had not been previously marked as Junk. When I tried to retrieve them back, they each were automatically marked Junk and moved back to the junk folder. I tried unmarking each individually and as a batch. As soon as I designated not junk, I watched them get marked and moved. I have turned off the Junk mail options for now, but that is one of my favorite things about Thunderbird that I like. Why is this happening all of a sudden? I am currently running Windows 10, and had not been having an issues until today (8/29).

All Replies (3)

more options

What email provider? Is the account IMAP or POP? Does your anti virus have a spam filter?

more options

It is set up as POP, and I am using Windows Defender. After I updated to Windows 10 I had no issues initially when I set up the email accounts. The email service I am using is through my cable company. I have never encountered this kind of problem with Thunderbird before. I was literally watching as the emails were marked and moved. Then when I marked them all as "not junk" and moved them back to the inbox I watched them all get marked and moved again. I turned off the junk mail settings in Thunderbird to stop this for now until I can get the problem fixed, hopefully.

more options

Matt said

What email provider? Is the account IMAP or POP? Does your anti virus have a spam filter?

Matt said

What email provider? Is the account IMAP or POP? Does your anti virus have a spam filter?

It is set up as POP, and I am using Windows Defender. After I updated to Windows 10 I had no issues initially when I set up the email accounts. The email service I am using is through my cable company. I have never encountered this kind of problem with Thunderbird before. I was literally watching as the emails were marked and moved. Then when I marked them all as "not junk" and moved them back to the inbox I watched them all get marked and moved again. I turned off the junk mail settings in Thunderbird to stop this for now until I can get the problem fixed, hopefully.