Rt "works" but logs user errors, sends bounces

I’m running rt on fedora 6/apache. I used the fedora RPM to install
RT. I am using ssl on my website (https://hostname/rt3).

When I send email to rt, it creates a ticket and seems to work. It
sends me a reply telling me my ticket number, etc. I can do stuff and
see tickets created by email using the GUI, no problem. But I have
these weird log messages.

grep REST /var/log/messages
Jul 23 10:58:25 hostname RT: Could not record email: Could not load a
valid user (/usr/share/rt3/html/REST/1.0/NoAuth/mail-gateway:73)

Any clue what this might mean?

Also getting some weird bounces that seem related. (full text at end
of message). smrsh seems to give?/get? an error return even though
rt3 apparently receives the info and succeeds in making a ticket.
(Does rt ever give a non-zero return code even though a ticket was
created?) Maybe the error return makes smrsh send a bounce to
rt@localhost? Seems like it should send the bounce to the source of
the email, not the destination… and why does it wait 5 days? I am
upside down.

Here’s what logwatch says:

--------------------- httpd Begin ------------------------

Requests with error response codes
501 Not Implemented
/rt3/REST/1.0/NoAuth/mail-gateway: 77 Time(s)

---------------------- httpd End -------------------------

Seems there might be a hint at
SomeProblems - Request Tracker Wiki, but I don’t really
understand how to apply that fix to my situation, if it applies at
all. That is, I don’t really understand what is wrong and the context
in which that fix apparently worked. Only thing connecting it to my
problem is the mention of REST.

Here’s the bounce, apparently something could not be delivered
somewhere for 5 days:---------- Forwarded message ----------
From: Mail Delivery Subsystem
To: owner-hostname
Date: Mon, 23 Jul 2007 11:13:39 -1000
Subject: Returned mail: see transcript for details
The original message was received at Wed, 18 Jul 2007 09:27:18 -1000
from localhost.localdomain []

----- The following addresses had permanent fatal errors -----
“|/etc/smrsh/rt-mailgate --queue general --action correspond --url
(reason: Deferred)
(expanded from: rt@localhost)

----- Transcript of session follows -----
An Error Occurred

501 Method Not Implemented
“|/etc/smrsh/rt-mailgate --queue general --action correspond --url
https://hostname/rt3”… Deferred: prog mailer (/usr/sbin/smrsh)
exited with EX_TEMPFAIL
Message could not be delivered for 5 days
Message will be deleted from queue

Final-Recipient: RFC822; rt@localhost
X-Actual-Recipient: X-Unix; |/etc/smrsh/rt-mailgate --queue general
–action correspond --url https://hostname/rt3
Action: failed
Status: 4.4.7
Diagnostic-Code: X-Unix; 75
Last-Attempt-Date: Mon, 23 Jul 2007 11:13:39 -1000

Seems like … email gets delivered to rt and makes a ticket, but
somehow a bounce gets generated, addressed to rt@localhost, which
cannot be delivered for 5 days, at which point a bounce gets sent to
me as the owner. ???

Clues or hints much appreciated.