Ugh, I remember struggling with this too. One thing that helped me was clearing Thunderbird’s cache and restarting it. Sometimes the app just gets stuck with old settings.
Also, check if your proxy supports SSL. Gmail requires SSL/TLS, so if your proxy doesn’t support it, you’re out of luck.
If all else fails, maybe try a different email client like Mailspring? It has built-in proxy support and might save you some headaches.
Also, check if your proxy supports SSL. Gmail requires SSL/TLS, so if your proxy doesn’t support it, you’re out of luck.
If all else fails, maybe try a different email client like Mailspring? It has built-in proxy support and might save you some headaches.