We're using mysql to select specific forwarding/storage data for exim with the
last two routers shown below which act as a 'catchall' and a wildcard forwarder.
The problem we've got is that if a customer has set up say [EMAIL PROTECTED]
but not their * wildcard and someone emails [EMAIL PROTECTED] then rather than
being rejected we're seeing
"stat=Deferred: 451 Temporary local problem - please try later"
The server logs showing
temporarily rejected RCPT [EMAIL PROTECTED]: MYSQL: no data found
Given that 99.9% of this mail is spam, it's wasting resources as the sending
servers keep trying every few hours because we're sending a temporary failure
and not a full failure.
Can anyone give us a more suitable tweak to the last routers or ACL?
Thanks JL
mysql_catchall:
driver = redirect
file_transport = address_file
pipe_transport = address_pipe
data = ${lookup mysql{SELECT sendto FROM exim_forwarding WHERE (user='*' AND
domain='$domain')}}
## recreates the %1@ sendmail fix
mysql_percent:
driver = redirect
file_transport = address_file
pipe_transport = address_pipe
data = ${quote:[EMAIL PROTECTED] mysql{SELECT sendto FROM exim_forwarding
WHERE (user='%1' AND domain='$domain')}}
####################################################################
# ACL CONFIGURATION #
# Specifies access control lists for incoming SMTP mail #
######################################################################
begin acl
accept hosts = : 127.0.0.1
deny local_parts = [EMAIL PROTECTED]/|] : ^\\.
accept local_parts = postmaster
domains = +local_domains
require verify = sender
accept domains = +local_domains
endpass
message = unknown user
verify = recipient
accept domains = +relay_to_domains
endpass
message = unrouteable address
verify = recipient
accept hosts = +relay_from_hosts
accept authenticated = *
deny message = relay not permitted
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