lichess e-mail address

I sent an e-mail to support@lichess.org but it was returned as undeliverable.
Is there a good e-mail address for lichess?
Thanks.

hmm it should work if you need some help
was it about help or anything else

I sent a "proposal".
Here is what came back >
<support@lichess.org>:
550: 5.1.1 The email account that you tried to reach does not exist.

what proposol

You can find it here:
lichess.org/contact#help-root

Hello, it’s contact@lichess.org

Yes, I also sent a message but it always says check the email.
contact@lichess.org doesn't work :(

if u want to write a proposal write it here, in suggested features and bugs