Re: Selective outbound relaying II

2010-07-09 Thread Ville Walveranta
On Thu, Jul 8, 2010 at 10:54 PM, Victor Duchovni
victor.ducho...@morganstanley.com wrote:
 TLS security levels are configurable per nexthop destination
 as documented.  SASL logins are also specified via the table of
 per-destination user:password pairs. It is not clear what's missing.

I'll read more. The only thing that may be missing is my awareness of
the available configuration options.

Thanks for pointing those out.

Ville


Re: Selective outbound relaying II

2010-07-09 Thread Ville Walveranta
Resolved!

Another concurrent thread SASL Authentication per recipient domain
gave additional clues.

I ended up using a PCRE map for sender_dependent_relayhost_maps
(domain names changed to protect the innocent and to better illustrate
what was done):

main.cf:
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps =
hash:$config_directory/tables/smtp_sasl_password_maps
sender_dependent_relayhost_maps =
pcre:$config_directory/tables/smtp_relayhost_maps.pcre
smtp_tls_policy_maps = hash:$config_directory/tables/smtp_tls_policy_maps

smtp_sasl_password_maps:
[external.relaydomain.com]:2000 relayu...@relaydomain.com:password

smtp_relayhost_maps.pcre:
!/@mylocaldomain\.net$/ [external.relaydomain.com]:2000

smtp_tls_policy_maps:
[external.relaydomain.com]:2000 encrypt


Now all locally accepted domains except for mylocaldomain.net are
relayed via external.relaydomain.com listening at port 2000. TLS and
SASL authentication are used for external.relaydomain.com while emails
sent from mylocaldomain.net domain are delivered directly to recipient
smtp servers without SASL authentication or TLS.

In the end the resolution always tends to be rather simple, but for
people who don't live  breathe Postfix the (admittedly very good)
documentation can be a beast to comb through to find the appropriate
parameters and their application.  But I'm not complaining, the more
documentation the better!  Whenever I work with Postfix I still always
marvel its flexibility as compared to the ol' qmail I used to run few
years back.

Ville


Re: Selective outbound relaying II

2010-07-08 Thread Ville Walveranta
sender_dependent_relayhost_maps may be what I'm looking for..


Re: Selective outbound relaying II

2010-07-08 Thread Ville Walveranta
sender_dependent_relayhost_maps works except that the other settings
affecting the relay aren't conditionalized by the defined relayhost
maps.  In this case the relayhost for the externally relayed
business domains requires TLS and authentication while the relay for
the local domain (being the local Postfix) does not.

So my follow-up question is this: is it possible to affect other relay
parameters such as smtp_sasl_auth_enable or smtp_tls_security_level
with the sender_dependent_relayhost_maps?

Ville


Re: Selective outbound relaying II

2010-07-08 Thread Stan Hoeppner
Ville Walveranta put forth on 7/8/2010 9:14 PM:
 sender_dependent_relayhost_maps works except that the other settings
 affecting the relay aren't conditionalized by the defined relayhost
 maps.  In this case the relayhost for the externally relayed
 business domains requires TLS and authentication while the relay for
 the local domain (being the local Postfix) does not.
 
 So my follow-up question is this: is it possible to affect other relay
 parameters such as smtp_sasl_auth_enable or smtp_tls_security_level
 with the sender_dependent_relayhost_maps?

Something tells me you'll answer your own question before we get a chance to. ;)

-- 
Stan


Re: Selective outbound relaying II

2010-07-08 Thread Ville Walveranta
On Thu, Jul 8, 2010 at 9:17 PM, Stan Hoeppner s...@hardwarefreak.com wrote:
 Something tells me you'll answer your own question before we get a chance to. 
 ;)

;-)

I think I've now hit a wall with a singular configuration. I'll
proceed with setting up a second instance unless someone has a clever
idea how to accomplish what I'm looking for with single instance.

Ville


Re: Selective outbound relaying II

2010-07-08 Thread Victor Duchovni
On Thu, Jul 08, 2010 at 09:17:28PM -0500, Stan Hoeppner wrote:

 Ville Walveranta put forth on 7/8/2010 9:14 PM:
  sender_dependent_relayhost_maps works except that the other settings
  affecting the relay aren't conditionalized by the defined relayhost
  maps.  In this case the relayhost for the externally relayed
  business domains requires TLS and authentication while the relay for
  the local domain (being the local Postfix) does not.
  
  So my follow-up question is this: is it possible to affect other relay
  parameters such as smtp_sasl_auth_enable or smtp_tls_security_level
  with the sender_dependent_relayhost_maps?
 
 Something tells me you'll answer your own question before we get a chance to. 
 ;)

TLS security levels are configurable per nexthop destination
as documented.  SASL logins are also specified via the table of
per-destination user:password pairs. It is not clear what's missing.

-- 
Viktor.