Sent from my iPhone

On Sep 28, 2010, at 6:43 PM, Stephan Bosch <stephan@rename-it.nl> wrote:

Op 28-9-2010 23:02, Rick Romero schreef:

...

I was wondering if anyone thought of applying filters to email post
delivery, pre-read.

Basically the idea would be to head off Spam, Malware or Phishing
for already delivered email. Malware would probably be the least
likely target, as (knock on wood) user workstations would be
updated, but a targeted phishing scam would not create a public
signature that would be downloaded, yet an admin may have a regex
that could be used to remove that email before it left the server.

I used to run find and grep on my Maildirs, but that's no longer
practical. I think maybe an 'on connect', or 'on read' might be an
option.

I am not sure I understand the benefit of filtering things like spam
and scams post-delivery as opposed to filtering on-delivery as it is
now.

Please explain further.

If you assume the user retrieves their mail soon after delivery, it
doesn't make sense. :)

I think the biggest benefit to my service is the catching is phisjing
scams aimed at my users. I usually get a copy (dolts), and I will
block the reply to addresses, but it would be better to remove it
cpmpletely.

Another possible use might be URL scanning for updated malware sites
and labeling it accordingly -but modifying an email might a little
excessive for this function.

Rick