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Avast flags faulty certificate on my webemail server Shaw Cable Systems (now Rogers)

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  • Last reply by christ1

filterfeeder
filterfeeder
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hello, I just decided to allow my pet (favourite) laptop online after many years of using it only offline and so downloaded the latest Thunderbird so that I can read email ... but though I was using TB on another (older, Windows 7 Home) laptop earlier this evening, I can't get the newer one (Windows 10 pet) past a certificate flaw Avast has found and don't know enough to click the permission box or the "permanent" permissions box. Is it just that one has Avast and the other has Kaspersky? and Kaspersky doesn't have the same strictures? thanks if you can reassure me... I can't see anything wrong with anything visible in the certificate but in bold type it says that no reputable bank, store or other public entity would ever have a certificate in the condition this one apparently is in. Not sure what to do ... thanks for any help.

hello, I just decided to allow my pet (favourite) laptop online after many years of using it only offline and so downloaded the latest Thunderbird so that I can read email ... but though I was using TB on another (older, Windows 7 Home) laptop earlier this evening, I can't get the newer one (Windows 10 pet) past a certificate flaw Avast has found and don't know enough to click the permission box or the "permanent" permissions box. Is it just that one has Avast and the other has Kaspersky? and Kaspersky doesn't have the same strictures? thanks if you can reassure me... I can't see anything wrong with anything visible in the certificate but in bold type it says that no reputable bank, store or other public entity would ever have a certificate in the condition this one apparently is in. Not sure what to do ... thanks for any help.

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christ1
christ1
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Your best bet would be to get rid of Avast, it's known to be problematic in connection with Thunderbird. Just stick with Microsoft Defender which ships with Win10.

These are some generic suggestions to avoid problems with anti-virus software.

Create an exception in your anti-virus software for the Thunderbird profile folder, so that the anti-virus real-time scanner will not scan it. https://support.mozilla.org/en-US/kb/profiles-where-thunderbird-stores-user-data#w_how-to-find-your-profile

Don't let your anti-virus software scan incoming and outgoing messages.

Don't let your anti-virus software scan attachments.

Don't let your anti-virus software intercept your secure connection to the server.

Remove any add-ons your anti-virus software may have installed in Thunderbird.

Keep it working. http://kb.mozillazine.org/Keep_it_working_-_Thunderbird

And last but not least, backup your Thunderbird profile on a regular basis. https://support.mozilla.org/kb/profiles-where-thunderbird-stores-user-data#w_backing-up-a-profile