Webmail is turned off. You can turn it on by using the Server app on the server.

Question

Not sure why this suddenly happened. Nothing has really changed on this server. The web IS on (hence receiving the message above) and I have "Enable PHP web applications" checked. Mail is routing fine. Just not sure why the webmail suddenly quit working. I ran the "/System/Library/ServerSetup/CommonExtras/PostgreSQLExtras/WebmailServerSetup.s h" and it completed but no luck. Is there a script to reset just the webmail?

Answer 1

So, I've done some more digging. Thank you Apple, for thoughtfully providing documentation on your included software!  All you told me was that to enable webmail I had to check one box in the Server App.
Sigh.
Okay, rant off.  It's pretty obvious from the log entries I posted that both a user and a database are missing from postgres.  After some searching I found an INSTALL document, that says this:
* PostgreSQL
To use Roundcube with PostgreSQL support you have to follow these
simple steps, which have to be done as the postgres system user (or
which ever is the database superuser):
$ createuser roundcube
$ createdb -O roundcube -E UNICODE roundcubemail
$ psql roundcubemail
roundcubemail =# ALTER USER roundcube WITH PASSWORD 'the_new_password';
roundcubemail =# \c - roundcube
roundcubemail => \i SQL/postgres.initial.sql
All this has been tested with PostgreSQL 8.x and 7.4.x. Older
versions don't have a -O option for the createdb, so if you are
using that version you'll have to change ownership of the DB later.
Okay, good...except it doesn't tell me how to get to the $ prompt for entering the first set of commands.  On a hunch I tried just typing "postgres" at the command prompt and got this:
postgres does not know where to find the server configuration file.
You must specify the --config-file or -D invocation option or set the PGDATA environment variable.
I Googled that whole section as my search item and about the only relevant thing I got was info on how to set one's environment variables--which I already know how to do. What I don't know is where this variable is supposed to point.
Okay, I'm at my limit, I've run out of fingers to hold on various bullet points. Is there some clear, concise how-to on setting all this up that doesn't assume I already know half this stuff?