cannot write to tor-relays list

Hello.

At this link:
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays
I read such information: "To post a message to all the list members, send email to tor-relays@lists.torproject.org."
I made exactly this to discover lately a message in spam folder, which tells that my mail was rejected.

Please change this phrase in that way, which will tell user that without subscribing it will not work.

Here is my yesterday message (if anyone is interested):

Hi.

Today I have noticed a large increase in connection count.
at 2021-02-11 00:18 there was 6.39k connections,
at 2021-02-11 00:30 - 8.16k.

Most of the connections comes from Lithuania.
There are lots of similar IP, each one have 5-20 connections.

Maybe it is normal Tor work.
Maybe attack.

But anyway I was needed to notify community about it.

-- Vort

upd. Here is what my email provider says:

Translation:

The sender is confirmed. However, the letter came from the domain lists.torproject.org, which does not match the return address.
Sender: lists.torproject.org
Signature: no
Encryption: yes
Spam: yes