The Activity Manager records all the interactions between Thunderbird and your email provider in one place. There’s no more guess work. You only have to look in one place to see everything that’s happening with your email.
活动管理器在同一处记录了 Thunderbird 与您的邮件提供商之间的所有互动。没有更多猜疑。你只需在这个地方看看，就能了解您与电子邮件发生的所有事情了。