自8月份至今，Tutanota一直在遭受DDoS攻击，近两周尤其严重。网页端登陆缓慢、移动端邮件提醒延时，国内影响可能较小暂时没有出现无法登陆的情况。如通过https://mail.tutanota.com无法登录或登陆缓慢的可以试一下https://now.tutanota.de/。

9月18日，Tutanota团队通过邮件的方式对遭受的DDoS攻击作了简短的说明，除此之外，还介绍了一些新功能及用户使用政策：

日历邀请功能

该功能8月份就已经可以正常使用了，邀请对象也可以是非Tutanota邮箱账户。

在红框范围内输入邀请对象邮箱地址即可，后边的小锁可以选择是否加密。点击“Save”保存后，就会自动发送邀请邮件到对方邮箱。

不活跃账户删除

邮件原文：

Deletion of unused accounts

As stated in our Terms, we delete free accounts if they have not been used for six months. So far we did not actually proceed with this, but with the immense number of new users coming in, we are now starting to delete free accounts that have not been logged in for the last six months. Paid accounts (even if unused), or free accounts that you regularly use are not affected by this.

开始删除6个月未登录的免费账户，付费用户及经常使用的账户不受影响。

Post-quantum后量子加密？

Post-quantum questionnaire

At Tutanota, we focus on security and privacy. To keep your data safe at all times - also in the future - we have started a research project to add post-quantum secure encryption to Tutanota. If you can spare 10 minutes of your valuable time, we’d be happy to hear your thoughts on post-quantum encryption.

Tutanota团队正在研究“post-quantum”加密。

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