If I recall correctly it's being worked on.  There is a plan to harden the haskell.org domain during the holidays by introducing DKIM and setting up DMARC.  There is a thread in haskell-cafe titled "[Haskell-cafe] Work on mail.haskell.org beginning, please report any problems"  with more info. 

On Sun, 25 Dec 2016, 09:35 Takenobu Tani, <takenobu.hs@gmail.com> wrote:

Hi,

I'm using gmail.

Recently, many haskell's mails are detected as spam on gmail.

(ghc-devs, haskell-cafe, ghc-commit, ...)

Does anyone know why?

Do you know the workaround?

Regards,

Takenobu

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