[ various people write ]
> unsubscribe
Perhaps it's time to remind newbies once again that sending
"unsubscribe" requests to the list as a whole is an utter waste of time.
Both yours (because no one will act on such a request) and the rest of
the list membership's (because most of the list could not fix it for you
even if they wanted to).
When you want to unsubscribe or change your subscription, you need to
talk to the list 'bot. Which lives at majordomo@postgresql.org, not
at the list submission address. See the oft-repeated tips:
TIP 1: subscribe and unsubscribe commands go to majordomo@postgresql.org
TIP 2: you can get off all lists at once with the unregister command
(send "unregister YourEmailAddressHere" to majordomo@postgresql.org)
regards, tom lane