various problems with piped emails

[russmichaels]

I have 1 pop3 queue where all email goes. tickets@mydomain.com
registration is NOT required on this one
I then have numerous PIPE queues setup that will filter mail to the correct group and department.
some of these queues require registration, some do not.

I am having the following problems

1. We have alerts which are sent to customers and cc'd to us from various applications. These are not getting into the ticket system, and the parser log shows the error.
"No Assigned Queues Found for Mail Recipients".
I know this is becaus ethe TO address is the customers and not a queue address, but How can I resolve this ?

2. I have had to add all the queues email addresses and the staff email addresses as users, otherwise all emails coming from the pop3 queue or email replies from staff are rejected with the message
"User whatever@mydomain.com is not registered. The Queue settings require that the user be registered."
But the result of this is that when a staff member replies via email, the post appears twice, one as a staff reply and once as a user reply.
It also may appear additional times for other reasons.
The staff member also receives emails more than once because they exist as staff and as user.

3. some alerts, such as invoices are sent as HTML emails. These are completely un-viewable in the ticket system as it will not render HTML. Any way round this ?