Reading through the docs:
http://exim.org/exim-html-4.50/doc/html/spec_22.html#CHAP22
I was really interested to read this:
The incoming address can be redirected in several different ways:... It
can be forced to fail, with a custom error message.
This would be really handy for 'noreply' and 'goneaway' type users so I
thought I'd give it a try. I can get it to match OK with this router:
#RARE CASE ROUTER - USER IS NOT ALLOWED INBOUND MAIL
reject_noreply:
driver = redirect
data = noreply@???,:fail: Gone away, no forwarding
address
allow_fail = true
My objective would be to give a 550 'Gone away, no forwarding address'
with a connection drop at this point.
However, I'm not sure I'm on the right track because I get a 250
Accepted after the rcpt to for the address:
>>> processing "drop"
>>> check condition = ${if > {$rcpt_count}{3}}
>>> =
>>> drop: condition test failed
>>> processing "drop"
>>> check !verify = recipient/callout=15s,no_cache
>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>>> routing noreply@???
>>> example.local in "example.local"? yes (matched "example.local")
>>> example.local in "! +hosted_domains"? no (matched "!
+hosted_domains")
>>> example.local in "example.local"? yes (matched "example.local")
>>> example.local in "+hosted_domains"? yes (matched "+hosted_domains")
>>> calling reject_noreply router
>>> reject_noreply router forced address failure
>>> ----------- end verify ------------
>>> check !condition = ${lookup mysql{SELECT 1 FROM mailusers WHERE
usertype=0 AND active=1 AND email='${quote_mysql:$local_part}@
${quote_mysql:$domain}';}}
>>> = 1
>>> drop: condition test failed
>>> processing "accept"
>>> accept: condition test succeeded
250 Accepted
This could be a simple misunderstanding on my part of how things work,
or a obvious typo/failed to grasp the point type issue.
If anyone has any input, suggestions or corrections I'd be pleased to
received them.
Filling it out: I have a couple of conditions in the RCPT_TO acl that
check against popular DNSBL's, bad (EH|HE)LO, too many recipients plus
one to check certain recipients are not callout verified - they look
like this:
drop condition = ${if > {$rcpt_count}{3}}
delay = 15s
message = Too many recipients bye....
drop !verify = recipient/callout=15s,no_cache
!condition = ${lookup mysql{MYSQL_LRECIPIENTS}}
message = REJECTED - Remote Recipient Verify Failed
log_message = relay recipient verification failed
domains = +hosted_domains
accept
The relevant routers look like this:
mysql_localbox:
driver = accept
domains = +hosted_domains
condition = ${lookup mysql{MYSQL_LOCAL}}
#local_part_suffix = +*
#local_part_suffix_optional
transport = local_mysql_delivery
#RARE CASE ROUTER - USER IS NOT ALLOWED INBOUND MAIL
reject_noreply:
driver = redirect
data = noreply@???,:fail: Gone away, no forwarding
address
allow_fail = true
#relay to IP or HOSTNAME
relay_to_ip_or_host:
driver = manualroute
route_data = ${lookup mysql{MYSQL_RTHOIP}}
transport = relay_smtp
host_find_failed = defer
relay_to_mx:
driver = manualroute
route_data = ${lookup mysql{MYSQL_RTMX}}
transport = relay_smtp
host_find_failed = defer
no_more
# TRANSPORTS
.....
