On 2018-11-10 05:36:08 (+0100), Ralf Mardorf via arch-general wrote:
mails to email@example.com  are rejected.
I try to get in contact with the owner of one list, but don't get a reply.
 "If you are having trouble using the lists, please contact firstname.lastname@example.org." - https://lists.archlinux.org/
The one list you're seemingly having trouble with is arch-proaudio . You have been on moderation there for quite some time (and I reverted this now - as written there a few minutes ago). The owner contact address for that list would be arch-proaudio-owner@. You tried to send your mail to a mail address (mailman@) only (not so) relevant to the mailman setup. I guess a more useful /dev/null address could be put there, as we can assume, that the default mailman@ mailing list is either deactivated or doesn't exist anymore. However, that contact mail address is more aimed at list administrators (AFAIK).
In any case: There's no need to send an e-mail to arch-general about your moderation. You simply were on moderation and mailman notifies you about that. There's nothing special about this case, so please stop posting all over the place and simply wait.
If you don't get a reply instantly, this doesn't mean noone is receiving your emails. It only means a human on the other end simply either didn't have the time to work on your moderation or to even read your mail. All relevant information about your moderation can be found on arch-proaudio.