PostFix, Mailman, Majordomo question

We are running a Redhad box with PostFix, Mailman (listserver) and Majordomo
(listserver). We were using PostFix as our mail server and our MX record
points to it. However, we just converted to MS Exchange and we now want to
move our MX record to point to it. (I know, I know, from Linux to MS
Exchange).

Here's what I need to know. If we turn off/stop the PostFix services will
our listservers still work? Or do we "have" to keep PostFix running for the
listservers to work. For now we want to keep our listservers on the Linux
box.

Or,

What's the best way to do what we want to do?

--

TIA,


Clayton


P.S.: I wrote an iTunes podcast tutorial and just want to publicize it.
You can find it at: http://www.nikoli.net/itunepod

*******************

On Feb 22, 11:53 am, "Clayton Sutton" <n...@none.com> wrote:
> We are running a Redhad box with PostFix, Mailman (listserver) and Majordomo
> (listserver). We were using PostFix as our mail server and our MX record
> points to it. However, we just converted to MS Exchange and we now want to
> move our MX record to point to it. (I know, I know, from Linux to MS
> Exchange).
>
> Here's what I need to know. If we turn off/stop the PostFix services will
> our listservers still work?

No. They cannot function without the capability to receive or send
email, which is exactly the functionality that PostFix provides

> Or do we "have" to keep PostFix running for the
> listservers to work. For now we want to keep our listservers on the Linux
> box.

You'll not only have to retain PostFix, but you will have to ensure
that your primary mail server (Exchange) relays incoming mail for
these listservers to your Linux system PostFix, or continue to run
PostFix as a public-facing mail service (bypassing Exchange
altogether). Similarly, your PostFix will either have to deliver mail
(generated by the listservers) directly, or relay it through your new
Exchange mail service.

All this because listservers receive mail (incoming posts, subscribe
and unsubscribe requests) from the local MTA/MDA and send their mail
(outgoing posts, renewal notices, etc) through the local MTA. You have
to have a local MTA (PostFix) which is capable of receiving and
sending subscriber emails.

HTH
--
Lew

Thanks for the info. Lew,

Maybe what we should do then is to just delete all of the "mailboxes" off
the PostFix server. You think? Not sure we really need to do that once we
swing the MX record to Exchange, we just need to make sure the PostFix can
relay mail off Exchange, right?


--

TIA,


Clayton


P.S.: I wrote an iTunes podcast tutorial and just want to publicize it.
You can find it at: http://www.nikoli.net/itunepod

*******************



"Lew Pitcher" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed) oups.com...
> On Feb 22, 11:53 am, "Clayton Sutton" <n...@none.com> wrote:
>> We are running a Redhad box with PostFix, Mailman (listserver) and
>> Majordomo
>> (listserver). We were using PostFix as our mail server and our MX record
>> points to it. However, we just converted to MS Exchange and we now want
>> to
>> move our MX record to point to it. (I know, I know, from Linux to MS
>> Exchange).
>>
>> Here's what I need to know. If we turn off/stop the PostFix services
>> will
>> our listservers still work?
>
> No. They cannot function without the capability to receive or send
> email, which is exactly the functionality that PostFix provides
>
>> Or do we "have" to keep PostFix running for the
>> listservers to work. For now we want to keep our listservers on the
>> Linux
>> box.
>
> You'll not only have to retain PostFix, but you will have to ensure
> that your primary mail server (Exchange) relays incoming mail for
> these listservers to your Linux system PostFix, or continue to run
> PostFix as a public-facing mail service (bypassing Exchange
> altogether). Similarly, your PostFix will either have to deliver mail
> (generated by the listservers) directly, or relay it through your new
> Exchange mail service.
>
> All this because listservers receive mail (incoming posts, subscribe
> and unsubscribe requests) from the local MTA/MDA and send their mail
> (outgoing posts, renewal notices, etc) through the local MTA. You have
> to have a local MTA (PostFix) which is capable of receiving and
> sending subscriber emails.
>
> HTH
> --
> Lew
>
>

Clayton Sutton wrote, on 22. feb 2007 17:53:

> We are running a Redhad box with PostFix, Mailman (listserver) and Majordomo
> (listserver). We were using PostFix as our mail server and our MX record
> points to it. However, we just converted to MS Exchange and we now want to
> move our MX record to point to it. (I know, I know, from Linux to MS
> Exchange).
>
> Here's what I need to know. If we turn off/stop the PostFix services will
> our listservers still work? Or do we "have" to keep PostFix running for the
> listservers to work. For now we want to keep our listservers on the Linux
> box.

Your Exchange MTA will probably be called the same as your Linux MTA was
and the DNS MX and A records for this will have to point to that IP number.

If you want to carry on using the Linux machine a list server, it will
have to have a different name from what it's had up to now and you must
set up corresponding DNS MX and A record for it (maybe pointing to a
different IP number than it had previously. After that you'll be able to
carry on using it as a list server.

If the above doesn't mean anything to you, talk to your ISP or a network
specialist.

--Tonni

--
Tonni Earnshaw
email: tonni dot at dot hetnet dot nl
throwaway spamtrap address: nieuwveen-(E-Mail Removed)

In article <mUjDh.69607$(E-Mail Removed)>, Clayton Sutton wrote:
> points to it. However, we just converted to MS Exchange and we now want to
> move our MX record to point to it. (I know, I know, from Linux to MS
> Exchange).

You have my condolences, Exchange has a reputation as being a particulary
nasty and brittle piece of software, even by MS standards.

You may want to consider using your linux box as a front-end for Exchange,
using it to to filter out harmful attachments and spam. You would need to
set up a Postfix transport map such that the list mail was processed
locally and everything else forwarded to your Exchange server. Ideally
you would also configure Exchange to send all outgoing traffic to
Postfix for filtering.

--
Roger Blake
(Subtract 10 for email.)

Well, I guess I will leave PostFix running if the listservers need it.
However, can I stop POP3 and IMAP so users can't connect to their old
PostFix mailboxes? Will that be okay? Do the listservers need POP3 or
IMAP? What are the commands to stop (and disable) POP3 and IMAP so they
don't start up after a reboot?

--

TIA,


Clayton


P.S.: I wrote an iTunes podcast tutorial and just want to publicize it.
You can find it at: http://www.nikoli.net/itunepod

*******************



"Clayton Sutton" <(E-Mail Removed)> wrote in message
news:mUjDh.69607$(E-Mail Removed). ..
> We are running a Redhad box with PostFix, Mailman (listserver) and
> Majordomo (listserver). We were using PostFix as our mail server and our
> MX record points to it. However, we just converted to MS Exchange and we
> now want to move our MX record to point to it. (I know, I know, from Linux
> to MS Exchange).
>
> Here's what I need to know. If we turn off/stop the PostFix services will
> our listservers still work? Or do we "have" to keep PostFix running for
> the listservers to work. For now we want to keep our listservers on the
> Linux box.
>
> Or,
>
> What's the best way to do what we want to do?
>
> --
>
> TIA,
>
>
> Clayton
>
>
> P.S.: I wrote an iTunes podcast tutorial and just want to publicize it.
> You can find it at: http://www.nikoli.net/itunepod
>
> *******************
>
>
>
>

Clayton Sutton wrote, on 23. feb 2007 16:03:

> Well, I guess I will leave PostFix running if the listservers need it.
> However, can I stop POP3 and IMAP so users can't connect to their old
> PostFix mailboxes? Will that be okay?

Yes.

> Do the listservers need POP3 or
> IMAP?

No.

> What are the commands to stop (and disable) POP3 and IMAP so they
> don't start up after a reboot?

Depending on what they are, 'rpm -e whateveritis'; alternatively
'service whateveritis stop', then 'chkconfig whateveritis off'. I don't
know what program(s) you have running POP3 and IMAP, I don't suppose
they're called from xinetd.

--Tonni

--
Tonni Earnshaw
email: tonni dot at dot hetnet dot nl
throwaway spamtrap address: nieuwveen-(E-Mail Removed)

Cool,

Thanks Tony, I have someone here who can do that for me.

--

TIA,


Clayton


P.S.: I wrote an iTunes podcast tutorial and just want to publicize it.
You can find it at: http://www.nikoli.net/itunepod

*******************



"Tony Earnshaw" <nieuwveen-(E-Mail Removed)> wrote in message
news:45e0482c$0$13604$(E-Mail Removed) ...
> Clayton Sutton wrote, on 23. feb 2007 16:03:
>
>> Well, I guess I will leave PostFix running if the listservers need it.
>> However, can I stop POP3 and IMAP so users can't connect to their old
>> PostFix mailboxes? Will that be okay?
>
> Yes.
>
>> Do the listservers need POP3 or IMAP?
>
> No.
>
>> What are the commands to stop (and disable) POP3 and IMAP so they don't
>> start up after a reboot?
>
> Depending on what they are, 'rpm -e whateveritis'; alternatively 'service
> whateveritis stop', then 'chkconfig whateveritis off'. I don't know what
> program(s) you have running POP3 and IMAP, I don't suppose they're called
> from xinetd.
>
> --Tonni
>
> --
> Tonni Earnshaw
> email: tonni dot at dot hetnet dot nl
> throwaway spamtrap address: nieuwveen-(E-Mail Removed)