Philip Hazel writes ("Re: [EXIM] virtual domain with some local addresses ?"):
...
> Ah. You want some domains to be handled effectively as synonyms. Hmm. I
> don't think that can be done directly.
...
> I think that something like that is needed, but you don't mean a rewrite
> rule, you mean a transport filter. Essentially you need to turn all the
> domains that you want to batch together into the same domain, e.g.
>
> fred@??? => fred.fluffy@???
> joe@??? => joe.thunder@???
> postmaster@??? => postmaster.sour@???
>
> It might be easier to post-process the BSMTP files on their way to
> wherever than to use a transport filter.
The solution I came up with is to collect the domains together, but to
use a % to separate the original local-part and domain. This results
in BSMTP files like
MAIL FROM: <ijackson@???>
RCPT TO: <fred%fluffy.clouds.net@???>
RCPT TO: <joe%thunder.clouds.net@???>
DATA
...
which can be handled at the far end with an appropriate %-hack
configuration.
For information, the bits of config involved are below.
Thanks,
Ian.
HANDLING_DOMAINS=lsearch;/etc/mail/handling-domains
local_domains=LOCAL_HOSTS:....:HANDLING_DOMAINS
handling_tra:
driver=appendfile
directory=$host
user=${lookup{$domain:user}lsearch{/etc/mail/handling-sites}{$value}fail}
create_directory=false
no_from_hack
prefix=""
suffix=""
use_crlf=false
mode=0660
bsmtp=all
[Most directors have something like ...]
system_aliases:
driver=aliasfile
except_domains=HANDLING_DOMAINS
[ These are the virtual host directors: ]
handling_alias_dir:
driver=aliasfile
domains=HANDLING_DOMAINS
search_type=lsearch
freeze_missing_include=false
modemask=002
optional
skip_syntax_errors
syntax_errors_to=${extract{errors}{$domain_data}}
errors_to=${extract{errors}{$domain_data}}
file=${extract{aliases}{$domain_data}}
user=${extract{user}{$domain_data}}
initgroups
handling_smart_dir:
driver=smartuser
domains=HANDLING_DOMAINS
user=${extract{user}{$domain_data}}
new_address=${local_part}%${domain}@${extract{site}{$domain_data}}.site-gate.chiark.greenend.org.uk
handling_route:
driver=domainlist
domains=lsearch;/etc/mail/handling-sites
user=${extract{user}{$domain_data}}
route_list="* ${extract{queue}{$domain_data}}";
# initgroups
transport=handling_tra
[ The initgroups option is documented as working here, but it is
rejected. ]
# /etc/mail/handling-domains
fluffy.clouds.net: user=Mclouds errors=owner-clouds \
site=clouds aliases=/u/Mclouds/aliases.fluffy
thunder.clouds.net: user=Mclouds errors=owner-clouds \
site=clouds aliases=/u/Mclouds/aliases.thunder
sour.tastes.org: user=Mtastes errors=owner-tastes \
site=tastes aliases=/u/Mtastes/aliases.sour
# /etc/mail/handling-sites
clouds.site-gate.chiark.greenend.org.uk: user=Mclouds queue=/u/Mclouds/queue
tastes.site-gate.chiark.greenend.org.uk: user=Mtastes queue=/u/Mtastes/queue
--
Ian Jackson personal email: <ijackson@???>
These opinions are my own. http://www.chiark.greenend.org.uk/~ijackson/
PGP2 public key id 0x23f5addb, fingerprint 5906F687 BD03ACAD 0D8E602E FCF37657
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