我有我的域名电子邮件托管在谷歌应用程序,免费版本。问题是偶尔/频繁地,发送给我的电子邮件会退回。有人给我转发了退回消息:
Delivery to the following recipient failed permanently:
steven@vanesoftware.com
Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the recipient domain. We
recommend contacting the other
我找不到一个Q/A来回答我的问题,所以我想我会把它发出来,看看会有什么结果。
就Java包的命名约定而言,我知道它应该是反向域名:com.whatever.stuff和我得到关于没有混合大小写、连字符、关键字等的规则。
我还阅读了Java语言规范的7.7节(唯一的包名)。据我所知,Java的规则是使用反向域来确保唯一性.如果你没有,去拿一个:
You form a unique package name by first having (or belonging to an organization that has) an Internet domainname, such as sun.c
我想买域名com.co.uk前几天,但它似乎不可能。
我做了一个大名鼎鼎的节目,这就是输出所显示的:
Error for "com.co.uk".
This domain cannot be registered because it contravenes the Nominet UK
naming rules. The reason is:
third-level domains may not be identical to a top-level domain.
问题是,为什么我们不能买一个与顶级域名相同的第三级域名呢?另外,是否有办法获得此域?