Mail.postgresql.org is on the fritz

All,

Having two issues with mail.postgresql.org:

(1) Sending mail via authenticated SMTP through mail.postgresql.org
hasn't been possible for months.

(2) for the last few weeks, it's been impossible to send mail using the
webmail (Horde) interface.

(3) mail.postgresql.org is (as of today) now erroring out when I send
messages via third-party SMTP and try to copy stuff to the "sent" folder.

Overall, it seems like mail.postgresql.org is breaking down.  Who's
running it?

-- 
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com