Re: qpsmtpd support service for postfix

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qpsmtpd support service for postfix
\ Tek Bahadur Limbu (23 Jul 2007)
. \ Victor Duchovni (23 Jul 2007)
. \ (Wietse Venema) (23 Jul 2007)
. . \ Tek Bahadur Limbu (24 Jul 2007)

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Subject:	Re: qpsmtpd support service for postfix
Group:	Postfix-users
From:	Tek Bahadur Limbu
Date:	24 Jul 2007

Wietse Venema wrote:
> Tek Bahadur Limbu:
>> Hi all,
>>
>> Being relatively new to the world of MTAs, I was wondering if we could
>> deploy Qpsmtpd in front of Postfix. Currently, we use Qpsmtpd with Qmail
>> because of the numerous number of plugins support of Qpsmtpd. We have at
>> least a dozen plugins of Qpsmtpd running with Qmail.
>>
>> Does Postfix support it's own set of plugins? I have read a number of
>> articles documenting Qpsmtpd with Postfix. Does anybody here use Qpsmtpd
>> with Postfix?
>>
>> Any pointers, suggestions and tips will be highly appreciated.
>
> You can plug in SMTPD policies and Milter applications, as well as
> external content filters. In addition to these, Postfix supports
> LDAP or *SQL *SQL table lookups without any patches.
>
> Qpsmtpd depends on internal Postfix interfaces, in this case the
> queue file format. If you take this approach, then you cannot
> upgrade Postfix to a later version, and you will no longer be able
> to find support as you fall further and further behind.
>
> Postfix's external interfaces are documented in Postfix manual
> pages (Postfix-specific interfaces) or in Internet RFC documents.
> There is an implied promise that such interfaces will be supported
> as Postfix evolves. That is, when an old feature is to be replaced
> by a new one, both will be available for one or more releases.
>
> No such promise of support exists for software that depends on
> Postfix internal formats. It will break as Postfix evolves, and no
> compatibility workarounds will be offered.

Hi Wietse and Viktor,

Thank you very much for shedding light on this issue. I will do the
necessary part from myself to avoid Qpsmtpd from Postfix as far as possible.

I will take the path using SMTPD policies and Milters or LDAP.

Thanking you...

>
> Wietse
>
>
>

--

With best regards and good wishes,

Yours sincerely,

Tek Bahadur Limbu

(TAG/TDG Group)
Jwl Systems Department

Worldlink Communications Pvt. Ltd.

Jawalakhel, Nepal

http://www.wlink.com.np