[mc] New mailing lists

[Viktor Štujber]

Hi, just letting you know that I was still subscribed to the mc mailing 
list, but I had 'mail delivery' set to Disabled for a bunch of years 
now. The migration seems to not have retained this setting, so I started 
receiving all the conversations again. Maybe there are more people like 
me, who'll wake up cofused about suddenly having lots of messages in 
their inbox :)