The links from Stack Exchange's inbox and SOFT inbox notifications emails go through a https://sg-links.stackoverflow.email/ link. Currently these links are hitting an "offline for maintenance" page:

error page when clicking any link in emails

  • Random observation: Looks like this is the first time status-review tag is used in the first revision of a post in MSE. Anyway, thanks for reporting the bug. Sep 19 at 5:31
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    @RandomPerson I created a SEDE query to see, and while rare, this is not the first time that tag was used in the first revision of an MSE post. data.stackexchange.com/meta.stackexchange/query/1785592
    – cocomac
    Sep 19 at 5:49
  • @cocomac ...and the author of this question accounts for a majority of those cases. Sep 19 at 6:02
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    Not only Teams, all links in all emails are broken, that's a critical bug. @RandomPerson Sep 19 at 6:51
  • @ShadowTheGPTWizard I thought that only links in new emails were affected. But that's not the case. Even links in old emails are broken. Sep 19 at 10:08
  • @RandomPerson yes, that's what I meant in the comment and my edit and why it's critical bug. Looks like they shut down essential part of their infrastructure, hopefully not on purpose. (Sadly, I won't be surprised if they did) Sep 19 at 10:43
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    From what I understand more of a bit of reconfiguration than a shut down. Besides, I think breaking these links with no warning makes no sense, especially for teams users. Sep 19 at 10:59
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    Thanks, have passed this on to the SRE team.
    – Aaron Bertrand Staff
    Sep 19 at 11:17
  • @ShadowTheGPTWizard Could it be related to this: meta.stackexchange.com/q/393039? Sep 19 at 11:20
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    @RandomPerson Not much point in speculating. We find bugs, a mod or staffer verifies there's a bug, and we wait for a fix. We don't have, nor have we ever had enough view on the inside to tell. Sep 19 at 11:22
  • Seems to be fixed Sep 19 at 13:44
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    @samcarter_is_at_topanswers.xyz no, not fixed for me. Sep 19 at 14:36
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    @Dalmarus this is not fixed, at least not for me, so maybe location based. Better not mark as completed for now. Sep 19 at 14:37
  • For me the links in new mails now work, as well as the links from emails a couple of hours ago, which previously led to the offline page, now work, too. Sep 19 at 14:43
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    @ShadowTheGPTWizard Yep, that was on me, marking too early - the fix had been created, but deployment hadn't fully gone out yet. Sorry for jumping the gun. Should be all good to go now though. :)
    – Dalmarus StaffMod
    Sep 19 at 14:53

1 Answer 1


Thanks for the report. The team found the issue and a fix has been deployed. Current testing shows the issue is no longer occurring so I've marked this as status-completed.

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    Was this because of the IP address change? Sep 19 at 14:53
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    @ShadowTheGPTWizard Indirectly, yeah. We're changing CDN providers (hence the IP change), and in the process of switching, we missed an obscure configuration specific to the email link domain.
    – balpha StaffMod
    Sep 20 at 6:54

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