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Thunderbird does not connect to server

Wayne Mery replied
Jim Kinnibrugh

Since 12th December Thunderbird 115.5.2 will not connect to the Protonmail server. I have not touched the settings. The screenshot shows the settings and I notice the Port is not the default but am reluctant to change that for fear of messing things even more. Running on macOS Big Sur 11.7.10.

Since 12th December Thunderbird 115.5.2 will not connect to the Protonmail server. I have not touched the settings. The screenshot shows the settings and I notice the Port is not the default but am reluctant to change that for fear of messing things even more. Running on macOS Big Sur 11.7.10.
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127.0.0.1 is a local loopback address (used in this case because the ProtonMail bridge is a proxy service that runs on your local machine). Make sure the bridge service is running; if the issue persists follow the steps in this article. There is also a dedicated ProtonMail client.

My post was held back for moderation and did not appear - lots of wasted work

Hi MU, it seems you attempted to help but have been thwarted. Thanks for trying. I think I will uninstall and reinstall Thunderbird (which continues to work on my Linux desktop) on the Mac and see if that works.

Cheers,

Jim K.

DId you have good results?