> On Oct 29, 2018, at 10:59 AM, kousou+post...@aueb.gr wrote:
>
> Yet, with all respect, I do believe that you should reconsider the issue so
> that no such 'tricks' would be necessary and hence the deployment and
> administration of the system would be more straightforward.
Unfortunately, the tricks are a necessary architectural consequence of:
* Sendmail-compatible aliases files
* Performance, i.e. parallel delivery of distinct local recipients
Therefore, this part of the design won't change. If users read the
documentation, we could perhaps find a few more places to encourage
them to avoid aliases(5) and use virtual(5) for all rewriting that
maps addresses to other addresses. The aliases(5) file should ONLY
be used for:
* addresses that expand to pipes
* addresses that expand to ":include:" lists
* addresses with an "owner-" alias.
Furthermore, to reduce unintentional deliveries to the legacy
local(8) mailer, all bare addresses ("user" rather "u...@example.com")
should qualify via "$myorigin" to a virtual alias domain, that does
all the requisite rewriting, and only final addresses that rewrite
into a non-default local domain "@localhost.$mydomain" or "@$myhostname"
should go to the local mailer.
That is:
main.cf:
# Uncomment zero or more, fewer generally better
mydestination =
# $myhostname
# localhost.$mydomain
# localhost.invalid
# localhost.local
# Make sure this is not listed in $mydestination
myorigin = $mydomain
virtual_alias_domains = $myorigin
# Explicit rewrites for all local(8) deliveries:
indexed = ${default_database_type}:${config_directory}/
virtual_alias_maps = ${indexed}virtual
# Local aliases for just pipes, include files, ...
alias_database = ${indexed}aliases
alias_maps = $alias_database
# Automatically qualify "localhost" (revert Postfix 3.0 default)
append_dot_mydomain = yes
virtual:
# Joe has a local(8) mailbox, and may have a .forward file, ...
j...@example.com joe@localhost
# mypipe expands to "|command" running as ${default_privs} (nobody)
#
myp...@example.com mypipe@localhost
# mylist has an owner-alias, and expands via a ":include:" path
#
myl...@example.com mylist@localhost
--
--
Viktor.
