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Connection Refused

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After Thunderbird just updated to Version 128.5.0esr today, now all my accounts are saying that the connection is refused. This is coming from three different email services that I have accounts on. I'm assuming it's not an issue with those servers as I can access them just fine with a different email client, and I didn't change any settings. Yesterday it worked, today it doesn't. Only thing that seems to have changed is Thunderbird got updated.

After Thunderbird just updated to Version 128.5.0esr today, now all my accounts are saying that the connection is refused. This is coming from three different email services that I have accounts on. I'm assuming it's not an issue with those servers as I can access them just fine with a different email client, and I didn't change any settings. Yesterday it worked, today it doesn't. Only thing that seems to have changed is Thunderbird got updated.

All Replies (4)

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Does problem change? (many users have found antivirus software causing problems)

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Unfortunately my network devices are not supported in safe mode, so I could not try that.

However after rebooting back into normal mode, most of my accounts suddenly worked, with only yahoo accounts still not connecting. I then closed thunderbird, and when relaunching, none of my accounts work again. Back to square one.

I did try launching it in troubleshooting mode and disabling my antivirus, but still the same result.

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What is your antivirus? What exactly did you disable?

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I have Norton. Disabled both the Auto-protect and the Smart Firewall by right clicking the icon in the system tray.

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