No email accounts are required on the filter box. Everyone has their own
way of doing things, I have 2 relevent files in /etc/exim folder:
relay_domains states what domains we are going to filter
transport states where we are going to send the mail after filtering.
My exim.conf looks like this - Exim wizards will find plenty to
criticize, but it should get you started:
# /etc/exim/exim.conf
############# INITIAL SETTINGS######################
# set some defaults values and read in config files#
host_lookup = 0.0.0.0/0
spamd_address = 127.0.0.1 783
qualify_domain = schmerold.com
qualify_recipient = schmerold.com
message_size_limit = 10M
smtp_accept_max = 100
smtp_banner = schmerold.com secure smtp server
domainlist relay_to_domains = /etc/exim/relay_domains
hostlist relay_from_hosts = 127.0.0.1
domainlist local_domains =
acl_smtp_rcpt = acl_check_rcpt
never_users = root
############# ACCEPT SETTINGS#######################
# set rules for accepting messages here#
begin acl
acl_check_rcpt:
accept hosts = :
deny local_parts = ^.*[@%!/|] : ^\\.
accept local_parts = postmaster
domains = +local_domains
accept domains = +relay_to_domains
endpass
message = relay not permitted at this server
verify = recipient
accept hosts = +relay_from_hosts
.include /etc/exim/exim_deny.conf
deny message = relay not permitted at this server
deny message = Access denied - $sender_host_address listed by
$dnslist_domain\n$dnslist_text
dnslists = sbl-xbl.spamhaus.org : dnsbl.sorbs.net :
bl.spamcop.net : \
multi.surbl.org : spam.dnsbl.sorbs.net : bl.spamcannibal.org : \
dnsbl-2.uceprotect.net
deny message = This message scored $spam_score spam points.
spam = exim:true
condition = ${if >{$spam_score_int}{100}}
############# ROUTER SETTINGS#######################
# set rules for selecting a transport#
begin routers
redirect:
driver = redirect
data = ${lookup{$local_part@$domain}lsearch{/etc/exim/user_alias}}
internal:
driver = manualroute
domains = +relay_to_domains
transport = remote_smtp
route_data = ${lookup{$domain}partial-lsearch{/etc/exim/transport}}
external:
driver = dnslookup
domains = ! +relay_to_domains
transport = remote_smtp
ignore_target_hosts = 0.0.0.0 : 127.0.0.0/8
no_more
############# TRANSPORT SETTINGS####################
# set rules for delivery transports#
begin transports
remote_smtp:
driver = smtp
Muhammed afsal wrote:
> Hello,
>
> Thanks for your good suggestions.
>
> It would be very helpful if you can provide any useful links or
> documents in configuring exim as an intermediate MTA ( Mail
> filter/scanner)
>
> also
>
> Do we need mail accounts on the intermediate MTA( on which exim is
> running) same that of groupwise mail server to configure a webmail
> client ( ex: squirrel mail) on the server where exim is running?
>
>
> Thanks,
> Sal.
>
