My server is on mx0.schmerold.com there is no firewall between the
server & Internet. Ping response is excellent from the servers I tested
at
http://traceroute.org, I see time-outs when running traceroute.
I don't under stand the significance of this. Please enlighten me. If
the problem is our ISP, we'll switch.
Regarding message size, it does not seem to be the cause. The largest
message from Interfax was 248KB, they tend to run 25KB.
W B Hacker wrote:
> schmerold2@??? wrote:
>> We are getting duplicate emails. It seems to be the same senders,
>> however not every one of their emails duplicate. 5% of mails from
>> Charter.net will duplicate, 10% of mails from Cox will duplicate, 100%
>> of mails from Interfax.net will duplicate.
>>
>> Interfax (a mail to fax provider) is the only sender that consistently
>> send duplicate emails. When I asked them to fix it, they said:
>>
>> "it seems that we are having problems sending you the e-mails and then
>> getting confirmations from the mail server that it received them - and
>> that is causing us to resend the e-mails over and over."
>>
>> Anyone have any ideas?
>
> Not seeing very much good news attmpting to traceroute your server.
>
> Suggest you locate a looking glass (see http://traceroute.org)
> 'near' whichever Interfax host is sending to you, and traceroute to your
> server from close to where Interfax is origination trafic to you.
>
> Exim cannot repair networks, but can be made patient enough to wait them out.
>
> However - the other side also has to be willing to do so as well.
>
> Bill
>
>
>
>> My exim.conf follows:
>> # /etc/exim/exim.conf
>> host_lookup = 0.0.0.0/0
>> spamd_address = 127.0.0.1 783
>> qualify_domain = schmerold.com
>> qualify_recipient = schmerold.com
>> smtp_receive_timeout = 10m
>> message_size_limit = 25M
>> smtp_accept_max = 50
>> smtp_banner = mx0.schmerold.com secure smtp server
>> domainlist relay_to_domains = partial-lsearch;/etc/exim/transport
>> hostlist relay_from_hosts = 127.0.0.1
>> domainlist local_domains =
>> acl_smtp_rcpt = acl_check_rcpt
>> acl_smtp_mime = acl_check_mime
>> acl_smtp_data = acl_check_content
>> never_users = root
>> av_scanner = clamd:127.0.0.1 3310
>> perl_startup = do '/etc/exim/exim_surbl.pl'
>>
>> auto_thaw = 1d
>> ignore_bounce_errors_after = 1d
>> timeout_frozen_after = 3d
>>
>> helo_allow_chars = _
>>
>> ############# ACCEPT SETTINGS#######################
>> begin acl
>>
>> acl_check_rcpt:
>> accept hosts = :
>> deny local_parts = ^.*[@%!/|] : ^\\.
>>
>> accept local_parts = postmaster
>> domains = +local_domains
>>
>> # See
>> http://www-csit.phy.cam.ac.uk/cs-it/security/sender_reject_bydomain for
>> examples
>> deny message = Message rejected because $sender_host_address is
>> blocked locally.
>> log_message = Message rejected from $sender_host_address by
>> sender_reject_bydomain
>> senders = @@lsearch*;/etc/exim/blacklist
>>
>> accept domains = +relay_to_domains
>> endpass
>> message = relay not permitted at this server
>> verify = recipient
>>
>> accept hosts = +relay_from_hosts
>>
>> deny senders = :
>> condition = ${if ! eq{$recipients_count}{1}{1}}
>> message = Bounces must have only a single recipient
>> log_message = Another denied due to backscatter-Single
>> Recipient
>>
>> 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 : b.barracudacentral.org : psbl.surriel.com
>>
>> acl_check_mime:
>>
>> warn decode = default
>>
>> deny message = Blacklisted file extension detected
>> condition = ${if match \
>> {${lc:$mime_filename}} \
>> {\N(\.exe|\.pif|\.bat|\.scr|\.lnk|\.com)$\N} \
>> {1}{0}}
>>
>> deny condition = ${if <{$message_size}{100k}{yes}{no}}
>> set acl_m0 = ${perl{surblspamcheck}}
>> condition = ${if eq{$acl_m0}{false}{no}{yes}}
>> message = $acl_m0
>>
>> accept
>>
>> acl_check_content:
>> deny condition = ${if <{$message_size}{100k}{yes}{no}}
>> condition = ${if eq{$acl_m0}{}{yes}{no}}
>> set acl_m1 = ${perl{surblspamcheck}}
>> condition = ${if eq{$acl_m0}{}{yes}{no}}
>> set acl_m1 = ${perl{surblspamcheck}}
>> condition = ${if eq{$acl_m1}{false}{no}{yes}}
>> message = $acl_m1
>>
>> deny message = This message contains a virus or other harmful
>> content ($malware_name)
>> condition = ${if <{$message_size}{175k}{1}{0}}
>> demime = *
>> malware = *
>>
>> deny condition = ${if <{$message_size}{100k}{yes}{no}}
>> condition = ${if eq{$acl_m0}{}{yes}{no}}
>> set acl_m1 = ${perl{surblspamcheck}}
>> condition = ${if eq{$acl_m1}{false}{no}{yes}}
>> message = $acl_m1
>>
>> warn message = X-Spam-Score: $spam_score
>> spam = exim:true
>>
>> warn message = X-Spam-Report: $spam_report
>> spam = exim:true
>>
>> warn message = Subject: **** SPAM **** $h_Subject
>> spam = exim
>>
>> deny message = This message scored $spam_score spam points.
>> condition = ${if <{$message_size}{975k}{1}{0}}
>> spam = exim:true
>> condition = ${if >{$spam_score_int}{70}{1}{0}}
>>
>> accept
>>
>> ############# ROUTER SETTINGS#######################
>> begin routers
>> redirect:
>> driver = redirect
>> data = ${lookup{$local_part@$domain}lsearch{/etc/exim/user_alias}}
>>
>> internal:
>> driver = manualroute
>> domains = +relay_to_domains
>> 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####################
>> begin transports
>>
>> remote_smtp:
>> driver = smtp
>>
>> begin retry
>> * * F,2h,15m; G,16h,1h,1.5; F,3d,8h
>>
>>
>
>
