Bill,
> >>> ...I run multiple content-filters, and the
first one actually pipes
> >>> mail (via the Postfix "sendmail"
command) back into postfix which
> >>> uses the "pickup" daemon to
retrieve the message.
If you have a choice, these system messages could be
submitted via SMTP
to Postfix on port 10025, e.g. by mini_sendmail, instead of
submitted
to maildrop directory through sendmail command.
> >>> I have not been able to figure out
> >>> if there is a way to tell
"sendmail" to use an alternate "pickup"
> >>> daemon when piping a message back to
Postfix.
I don't think there is a way. Pickup picks messages from a
maildrop directory,
and by the time message gets there, it is undistinguishable
from other
messages submitted by 'sendmail' binary.
> I wrote a script that delivers the post-scanned
MessageSniffer message
> directly to amavisd-new on 127.0.0.1:10024 by using the
smtpclient to
> handle the delivery instead the Postfix sendmail
client. This appears to
> be working great, and allows me to bypass content
filtering on the Postfix
> "pickup" daemon. Chaining the
content-filters together also reduces the
> number of message hand-offs and also cuts down on the
amount of Postfix
> logging.
Good.
> The message delivery process now looks like: Postfix
--> MessageSniffer
> --> Amavisd-new --> Postfix --> Maildrop
--> Dovecot, removing the Postfix
> hand-off between MessageSniffer and Amavisd-new.
>
> Mark, is amavisd-new missing anything that I should be
concerned about by
> having mail injected via SMTP vs. ESMTP? I noticed
that Postfix delivers
> to Amavisd via ESMTP, but the smtpclient delivers via
SMTP.
Since you were happy with a previous use of pipe/sendmail,
you probably
won't be missing much. As mouss stated, you'd be throwing
away DSN
options, PIPELINING and 8BITMIME announced capability, and
ability to
pass client IP address to amavisd through XFORWARD smtp
command extension,
but you didn't have these before either.
Mark
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