Why am I getting mod approval messages from cctech?

[random832 at fastmail.us]

On Mon, Nov 3, 2014, at 14:18, drlegendre . wrote:
> Every post I make to the general list results in a reply from 'cctech
> owner' explaining that my post is being held for moderation. I'm not
> sending my mails to that list, nor have I ever been a subscriber.
> 
> Anyone else having this issue?

I'm having a possibly related issue - I'm subscribed to cctalk but since
today I am getting some messages with a list-id of cctech (before today
all messages had list-id set to cctalk).