[exim] smtp email relay - added options allow open relay.

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Szerző: sam wun
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CC: exim-users
Régi témák: Re: [exim] Not allow smtp email relay to external server - added options
Új témák: Re: [exim] smtp email relay - some progress
Tárgy: [exim] smtp email relay - added options allow open relay.
sam wun wrote:

> I have added added the following options in the configure file try to
> accomplish an auth relay:
> hostlist relay_hosts = 192.168.4.0/24
>
> acl_check_rcpt:
> accept domains = +local_domains
> accept hosts = +relay_hosts
>
> After restarted exim, the Mozilla mail client seems have completed the
> send. But after a while back when I look at the exim/mainlog file, I
> found this error:
> 2004-10-20 09:18:08 1CK52K-000Dva-5G SMTP timeout while connected to
> mx2.mail.yahoo.com [64.156.215.20] after initial connection: Operation
> timed out
>

I found that when sending relayed email with this option, the sender
(mozilla mail client) does not need the check-box of "Use name and
password" checked. This is bad. so what might the way to setup smtp auth
relay in Exim4?

Thanks
Sam

> Thanks
> Sam
>
> sam wun wrote:
>
>> Hi,
>>
>> The Exim server (version 4) is able to send email from local nework
>> to external mail server, but when external client connect (login and
>> authenticated with the user name) to this Exim server and try to use
>> it to relay email to an external mail server, the Exim server does
>> not allow email relay. I thought the following setup will redirect
>> smtp authentication to cyrus lmtp:
>> In ROUTER:
>> localuser:
>> driver = accept
>> # check_local_user
>> # local_part_suffix = +* : -*
>> # local_part_suffix_optional
>> transport = local_delivery_lmtp
>> cannot_route_message = Wonderful - Unknown user
>> In TRANSPORT:
>> local_delivery_lmtp:
>> driver = lmtp
>> batch_max = 20
>> socket = /var/spool/imap/public/lmtp
>> timeout = 45s
>> group = mail
>> user = cyrus
>>
>>
>> but apparently it does not, the message indicated there must be some
>> other setup in the following codes:
>>
>> acl_check_rcpt:
>> accept  hosts = :
>> deny    message       = Restricted characters in address
>>          domains       = +local_domains
>>          local_parts   = ^[.] : ^.*[@%!/|]
>>  deny    message       = Restricted characters in address
>>          domains       = !+local_domains
>>          local_parts   = ^[./|] : ^.*[@%!] : ^.*/\\.\\./
>>  accept  local_parts   = postmaster
>>          domains       = +local_domains

>>
>>  require verify        = sender
>>  accept  domains       = +local_domains
>>          endpass
>>          verify        = recipient

>>
>>  accept  domains       = +relay_to_domains
>>          endpass
>>          verify        = recipient
>>  accept  hosts         = +relay_from_hosts
>>  accept  authenticated = *
>>  deny    message       = Wondeful - relay not permitted
>> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>                            here is where it causes relaying denied.

>>
>> I don't use MySQL and LDAP, only login is authenticated thru
>> cyrus-sasl2. So how can I setup smtp authentication to allow
>> authenticated email relaying in this case?
>> I have verified that the email client (mozilla) have the check-box of
>> Use name and password checked and I have typed in the user name in
>> the edit box as well.
>>
>> Thanks
>> Sam
>>
>>
>
>



-- 
Security Architect/Consultant
AuthTec Gateway Limited
Mobile: 9839 2464    
Email: sam.wun@???
Website: http://www.authtec.com


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