>The only problem with the SMTP solution is the delay
very marginal, a delay between machines, not a delay experienced by users.
> and another point of failure for you system.
unavoidable, but is easily offset by the increase in redundancy, in mail
routing flexibility, and off loading the heavy (command line) scanning from
your user mailbox server.
AV scanning is back-office plumbing, shouldn�t be run on front-office
user-services boxes.
>...with a solution that actually scans the spool you limit your delay.
with low-volume servers, this is acceptable, but it doesn�t scale. Large
mail systems are disk-bound. AV scanning is more disk i/o.
in-line scanning on a separate box reduces disk i/o on the mailbox server
since infected msgs are kept off the mailbox server.
>...and decrease your risk of downtime....
extremely marginal
Len
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