Hey,
On 21-03-16 18:09:22, Patrick Georgi via coreboot wrote:
We disabled the mail editor in hyperkitty due to spammers abusing that interface (ruining it for everybody). Since hyperkitty has no "official" way of doing that, we routed the editor into a 404 error.
Actually since HyperKitty Version 1.3.4 the HYPERKITTY_ALLOW_WEB_POSTING setting should do that. This might prevent further confusion for others.