On Wed, Dec 15, 2010 at 10:51:13AM -0500, Wietse Venema wrote:
> Spacelee:
> > hi everything, I met a problem recently because we need to add a new
> > function to our product.
> > the problem is for each valid incoming email, we need to call a script to
> > insert it to different databases, someone said I could add this to the
> > /etc/aliases, like : b...@example.org: "|/tmp/somescripts.sh", but it's only
> > used for special users, unable for all the users(or emails)
> >
> > what should I do? do you have any suggestions?
>
> I concur with the suggestions to use a database engine that supports
> the LMTP protocol, such as DBmail. With a proper protocol such as
> LMTP, there is no need for the overhead of running a command-level
> tool for each individual email delivery. LMTP is also much better
> at handling delivery errors.
This said, if the OP is not really interested in DB mail, but rather
has a few aliases that require programmatic processing of incoming
mail, the best approach is to use /etc/aliases, and if desired use
"localhost.$mydomain" as the only domain in $mydestination, and use
virtual(5) aliases to map appropriate incoming mail into this domain.
main.cf:
indexed = ${default_database_type}:${config_directory}/
# Postfix versions <= 2.6
empty = regexp:/dev/null
# Postfix 2.7 or later, if Wietse does not object to this idiom
# empty = internal:empty
mydestination = localhost.$mydomain
virtual_alias_maps = ${indexed}virtual
# Accept local mail only for explicitly aliased addresses
# Allow only virtual(5) aliased local users
local_recipient_maps = $empty
virtual:
special-u...@example.com special-u...@localhost
--
Viktor.
