I need to refresh Mails mailboxes

Question

G'day
I've struck a real problem with mail. I'm trying to script it so that mail is automatically opened and printed every time a rule shifts mail to a certain mailbox.
For reasons too long to explain, i need to do this as a folder action that takes all the mail in the 'messages' sub folder of a mail box and prints it. An 'on added items only use the added items' for various reasons sometimes misses mail, so I HAVE to grab ALL the mail, and shift out each item as it's processed.
Unfortunately Mail is very slow at updating its folders, and an image of the messages is often left behind, resulting in it being processed twice.
Messages can actually exist in two places at once, until Mail does whatever it does to update the boxes.
I really, fairly desperately, need a method of updating the mail boxes every time I shift a message out of the folder. I've tried all sorts of things, shifting the messages out and back in, and reading the messages twice in succession. The 'ghostly' mail can even persists across restarts of Mail.app.
Regards
Brian Christmas

Answer 1

I don't know if this will help, since it doesn't answer the question, but it may give an alternative approach. This script when fired by a Mail rule will print the messages it is passed.
AK
click here to open this script in your editor<pre style="font-family: 'Monaco', 'Courier New', Courier, monospace; overflow:auto; color: #222; background: #DDD; padding: 0.2em; font-size: 10px; width:400px">using terms from application "Mail"
on perform mail action with messages theMsges --for rule TheRule
tell application "Mail"
try
repeat with ThisMessage in theMsges
set PID to do shell script "echo $$"
set TempFileName to ((path to desktop) as string) & PID
set TempFile to open for access TempFileName with write permission
write (content of ThisMessage as string) to TempFile
close access TempFile
do shell script "lpr -r " & "~/Desktop/" & PID
end repeat
on error TheError
display dialog "Problem: " & TheError
end try
end tell
end perform mail action with messages
end using terms from
using terms from application "Mail"
on run
tell application "Mail" to set sel to selection
tell me to perform mail action with messages (sel)
end run
end using terms from
</pre>
(The recent upgrade to the discussions has disabled the link that allows direct opening of a script, so run Script Editor and copy in the script.)