#130 Allow filters to append message to existing ticket
[ This is based on a conversation I'm overhearing in
the office just now... ]
It might be useful to setup a filter which can append
new incoming messages to an existing ticket. The way
I'd see it, some sort of pattern matching would do it.
Say for example you have a message coming in from your
web shopping cart software with the subject: "Purchase
for order #123456" and you have a message coming in
from your payment service provider with the subject:
"Payment successfully processed for order #123456".
You want both of those messages to be merged into a
single ticket.
The way I'd see it working is something along the lines
of a regular expression match on the incoming email:
"Purchase for order #([0-9]+)$", which would then
search the existing ticket subjects for "Payment
successfully process for order #$1" and, if found,
append it to the existing message.
