I want to specify that Sendgrid from Bubble.is core, works perfectly.
But via Sendgrid plugin of @copilot , it stopped to work from 1-2 days.
But maybe something has changed in the core of Bubble, which we do not know has put ko different api or plugins (server side)
I hope the author can solve it, the plugin is used 2,687 times and it’s the only way to use custom templates.
It’s always a good idea to reach out the author of a plugin, template, service, and product to gain context and guidance should they be able to provide it while you look to other resources such as forums and threads. Turning @andrew_bpco 's suggestion into action, file a bug report so we can investigate.