I should warn you against some of the advice below. Don't pretend someone else did it. That will make you look worse. Don't do as some do and send another e-mail with the subject line "VILE BITCH recalled". When I get these I read the original one with greater zeal.
我应当警告你,不要听从以下的一些建议。不要假装这件事是别人做的,那会让你看上去更糟。不要像某些人那样,重新发送一封电子邮件,在标题栏写上"收回可恶的泼妇"。如果收到这样一封邮件,我就会对最初那封邮件更上心。

And don't use this debacle to start a general discussion about the difficulties in your relationship. Given the hand grenade you've just thrown at it, you should apologise and then take cover and hope that things settle down.
另外,不要利用这次意外,对你们关系中的症结发起一场大讨论。鉴于你刚刚投出了手榴弹,你应当道歉,然后躲起来,希望事情可以平息。

It goes without saying that you should never do anything like this again. The golden rule is not to send any e-mail unless you would be happy to see it made public. But I sense you gaily disregard this rule daily, as indeed do I. Yours sounds like the sort of organisation where loose communication such as this is part of the culture. I bet you won't ever reform, but at least try to be more careful.
不用说,你永远都不该再做类似的事情。不要发送任何你不愿意被公开的电子邮件,这是金科玉律。但我感到,你每天都在快乐地忽略这一点,就像我一样。听起来,这种宽松的沟通方式似乎是你们企业文化的一部分。我打赌你永远也不会对它进行改革,但至少你要更谨慎一些。

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