I got a mail from the Stack Exchange Travel Site that I am one of the top users this month.

In the email, I saw:

Email us directly at [email protected] any time

Why are they putting @stackoverflow.com there instead of @stackexchange.com?

  • 1
    Stack Overflow is how the company is named see: stackoverflow.blog/2015/09/15/…
    – rene
    Commented Mar 1, 2017 at 9:06
  • 1
    @rene Legally the company is named Stack Exchange, Inc. "Stack Overflow" is a "doing business as" (trade/brand) name. (See Oded's answer to this question, which may very well be a duplicate.)
    – user642796
    Commented Mar 1, 2017 at 9:15

1 Answer 1


The company is still branded Stack Overflow, although the official company name is Stack Exchange Inc..

They've used the Stack Exchange brand for a while, but in 2015 they reverted to Stack Overflow again. In all that time, the email addresses never changed. They still use the same domain as that they did on day 1, when there was just Stack Overflow.

  • 1
    Well, both domains work for email. [email protected] and [email protected] will arrive to the same person in the same mailbox (assuming it isn't a group email address).
    – Oded
    Commented Mar 1, 2017 at 9:25
  • Okay, but you use @stackoverflow.com to communicate to the outside world. That is does work is nice, but undocumented, right? @Oded Commented Mar 1, 2017 at 9:26
  • More often than not, yes, the @stackoverflow.com - it is the better known domain. I don't know if we ever documented how this works.
    – Oded
    Commented Mar 1, 2017 at 9:27

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