Can receive messages but sending results in 404

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Join or start a room with a Google Apps account (tested with aeturnalus.com, 
SRV records have been added)
2. Try to send a message
3. Response will be either "not authorized" or "404", depending on client

What is the expected output? What do you see instead?

I expected to see the message in the room, instead I get a 404 error.

I can, however, see messages that other people post in the room.

Tested with adicu@im.partych.at

Please provide any additional information below.

Original issue reported on code.google.com by rbty...@aeturnalus.com on 19 Feb 2013 at 4:45

[GoogleCodeExporter]

Same problems here with a google apps account.
Records used:

_xmpp-server._tcp.mydomain.com. IN SRV 5 0 5269 xmpp-server.l.google.com.
_xmpp-server._tcp.mydomain.com. IN SRV 20 0 5269 alt1.xmpp-server.l.google.com.
_xmpp-server._tcp.mydomain.com. IN SRV 20 0 5269 alt2.xmpp-server.l.google.com.
_xmpp-server._tcp.mydomain.com. IN SRV 20 0 5269 alt3.xmpp-server.l.google.com.
_xmpp-server._tcp.mydomain.com. IN SRV 20 0 5269 alt4.xmpp-server.l.google.com.

_jabber._tcp.mydomain.com. IN SRV 5 0 5269 xmpp-server.l.google.com.
_jabber._tcp.mydomain.com. IN SRV 20 0 5269 alt1.xmpp-server.l.google.com.
_jabber._tcp.mydomain.com. IN SRV 20 0 5269 alt2.xmpp-server.l.google.com.
_jabber._tcp.mydomain.com. IN SRV 20 0 5269 alt3.xmpp-server.l.google.com.
_jabber._tcp.mydomain.com. IN SRV 20 0 5269 alt4.xmpp-server.l.google.com.    

_xmpp-client._tcp.mydomain.com. IN SRV 5 0 5222 xmpp.l.google.com.
_xmpp-client._tcp.mydomain.com. IN SRV 20 0 5222 alt1.xmpp.l.google.com.
_xmpp-client._tcp.mydomain.com. IN SRV 20 0 5222 alt2.xmpp.l.google.com.
_xmpp-client._tcp.mydomain.com. IN SRV 20 0 5222 alt3.xmpp.l.google.com.
_xmpp-client._tcp.mydomain.com. IN SRV 20 0 5222 alt4.xmpp.l.google.com.

Original comment by leg...@dave.cx on 6 Mar 2013 at 12:47