Oh man, I feel you! Can't access Gmail from Cuba is such a headache. I used a VPN called CyberGhost, and it worked after switching servers a few times.
Also, consider using a different email client like Thunderbird with a VPN. It’s a bit technical, but it might help you bypass the restrictions.
Also, consider using a different email client like Thunderbird with a VPN. It’s a bit technical, but it might help you bypass the restrictions.