My messages appear then disappear

Solved
mlab_2906 Posted messages 3 Status Member -  
 Anonymous user -
Hello,

I have several free email accounts accessible with Thunderbird. Overnight, all messages containing an attachment appear and then almost instantly disappear when I check my mail. Only one of my accounts is affected. However, when someone forwards me the same email with the same attached file, I can download it without it disappearing. In Zimbra, all messages exist and are retained.
No settings have been changed in Thunderbird. Could it be a virus? Has my email account been hacked?

4 answers

  1. dubcek Posted messages 18627 Registration date   Status Contributor Last intervention   5 660
     
    hello
    try a right click on Inbox -> properties -> repair the folder
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  2. mlab_2906 Posted messages 3 Status Member
     
    I just fixed the file, but the problem persists.
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  3. Anonymous user
     
    Hello,

    This is neither a virus nor a hacking issue but probably a setting or filter in place in Thunderbird.

    Does the disappearing message end up in the "Junk" folder or elsewhere?

    Since Thunderbird learns and remembers such decisions and applies them to subsequent messages from the same source, this behavior could be explained if the sender has been marked as junk at some point.

    To reset Thunderbird's "memory," go to Tools / Options / Security / "Junk" tab / Reset learning data.

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  4. mlab_2906 Posted messages 3 Status Member
     
    I finally found the lost emails and reset the learning filter. Everything is back to normal. Thank you for the help.
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    1. Anonymous user
       
      Great! Thanks for the feedback.
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