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Antivirus to disable on Thunderbird

Anonymous user -  
 Anonymous user -

Hello,

Hello everyone,
I just realized that to receive my Orange emails on my incoming mail in Thunderbird, I have to disable my antivirus Defender. Is there a way to resolve this or a solution besides disabling my antivirus? Thank you for your response.


3 answers

  1.
    brucine Posted messages 24952 Registration date   Status Member Last intervention   4 179
     

    Hello,

    The antivirus has nothing to do with the issue unless it intercepts attachments that it analyzes and doesn't like.

    I am not in favor of allowing an antivirus to scan in real time: it's always better to save the attachment to the desktop and scan it if you have any doubts.

    It’s probably the Windows Defender firewall that is blocking Thunderbird, and you need to create permission rules or, on the contrary, modify a blocking rule if one already exists.

    Thunderbird should be allowed outgoing UDP on port 53 (DNS) and outgoing TCP for the receiving ports used by Thunderbird depending on whether it’s POP or IMAP, according to the Windows Defender settings that I no longer remember.

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  2. Anonymous user
     

    Hello drizzle

    Yes, it is indeed Windows Defender that is blocking my emails on Thunderbird because when I disable it, I receive them.

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    1. brucine Posted messages 24952 Registration date   Status Member Last intervention   4 179
       

      It is therefore essential, to define the role of the antivirus, to verify that the situation occurs even when the email does not contain an attachment (in short, that we cannot connect at all).

      It is then the firewall that comes into play; we need to check if there is already a rule for Thunderbird. If so, modify it; if not, create one to allow the necessary connections.

      https://www.malekal.com/autoriser_bloquer-application-pare-feu-windows/#Depuis_Windows

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    2. Anonymous user > brucine Posted messages 24952 Registration date   Status Member Last intervention  
       

      Hello Brucine,

      Thank you for your Malekal link. I managed to do the trick, and it works now—I’m receiving my TB messages now. Have a great day.

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    3. brucine Posted messages 24952 Registration date   Status Member Last intervention   4 179 > Anonymous user
       

      Have a good day to you too.

      If I believe your username, you’re going to be in front of the TV tonight, that sucks...

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    4. Anonymous user > brucine Posted messages 24952 Registration date   Status Member Last intervention  
       

      RE: you're not wrong at all, it was already last night, the two matches were superb. Have a good day and thanks for the help.

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    5. brucine Posted messages 24952 Registration date   Status Member Last intervention   4 179 > Anonymous user
       

      I know that there has to be a winner, but I still felt a little heartbroken for the Irish who provided us with a wonderful match and who also deserved to win.

      There is a controversy over the group system, which is very uneven, resulting in several high-stakes matches at the quarter-final stage that would have been more suitable for the semi-finals, leading to a surprising Argentina in the semi-finals and a no less surprising England-Fiji in the quarter-finals.

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  3. Anonymous user
     

    Re:

    Yes, even without an attachment, it's the same.

    I did send a message on the TB forum without any real concrete solution. I will look into your link; otherwise, I thought about disabling Defender and installing another antivirus to see.

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