CentOS - Sep 2019 - Replacing sendmail with postfix (was: deprecations leading up to C8)

Am 2019-09-20 12:06, schrieb Randal, Phil:
> When I migrated our mx boxes from CentOS 5 to 7 I made the leap to 
> postfix.
> 
> I built a test server with postfix etc on it and threw everything I
> could think of at it before going live.
> 
> The key is, like in learning a new language, to start thinking in
> postfix terms instead of thinking in sendmail terms.
Exactly, I was about to answer the same.

Postfix has a lot of features build-in Sendmail hasn't. It is feature 
rich and actively developed. Many things you would need a milter or 
complex cf style coding for with Sendmail you can configure in Postfix 
in a simple way.
> It takes a while to 'get it' but I'm glad we made the link.
> 
> We search, read as many people's howtos as you can (caveat - they are
> rarely 100% accurate), and test, test, test before going into
> production.
Please, forget about so call howtos or tutorials on the net. They are 
either dated, giving wrong ideas (no, you don't need a MySQL server to 
run Postfix), failing to explain why the author has done things the way 
he writes them up, or they are simply wrong / violating best practice.

Postfix has a very good documentation (compared to the one shipping with 
Sendmail).

http://www.postfix.org/documentation.html

http://www.postfix.org/postconf.5.html
> Cheers,
> 
> Phil
Alexander

--On Friday, September 20, 2019 3:49 PM +0200 Alexander Dalloz 
<ad+lists at uni-x.org> wrote:
> Postfix has a lot of features build-in Sendmail hasn't. It is feature
> rich and actively developed. Many things you would need a milter or
> complex cf style coding for with Sendmail you can configure in Postfix in
> a simple way.
How would you implement the section here titled "Sendmail workaround"
using
Postfix? I use a lot of plussed addresses with the plus replaced with dot 
to deal with broken websites that reject a plus sign in an address. All my 
website logins use plussed addresses with dots. (I also use an email alias 
so my email address isn't my imap login.)

<https://mozilla.fandom.com/wiki/User:Me_at_work/plushaters>

On Fri, Sep 20, 2019 at 02:49:36PM +0200, Alexander Dalloz
wrote:
> Am 2019-09-20 12:06, schrieb Randal, Phil:
> >When I migrated our mx boxes from CentOS 5 to 7 I made the leap to
> >postfix.
> >
> >I built a test server with postfix etc on it and threw everything I
> >could think of at it before going live.
> >
> >The key is, like in learning a new language, to start thinking in
> >postfix terms instead of thinking in sendmail terms.
> 
> Exactly, I was about to answer the same.
> 
> Postfix has a lot of features build-in Sendmail hasn't. It is
> feature rich and actively developed. Many things you would need a
> milter or complex cf style coding for with Sendmail you can
> configure in Postfix in a simple way.
> 
> >It takes a while to 'get it' but I'm glad we made the link.
> >
> >We search, read as many people's howtos as you can (caveat - they
are
> >rarely 100% accurate), and test, test, test before going into
> >production.
> 
> Please, forget about so call howtos or tutorials on the net. They
> are either dated, giving wrong ideas (no, you don't need a MySQL
> server to run Postfix), failing to explain why the author has done
> things the way he writes them up, or they are simply wrong /
> violating best practice.
> 
> Postfix has a very good documentation (compared to the one shipping
> with Sendmail).
> 
> http://www.postfix.org/documentation.html
> 
> http://www.postfix.org/postconf.5.html
> 
> >Cheers,
> >
> >Phil
> 
> Alexander
Thanks to both of you: I'll be pursuing those docs.

Fred

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Once upon a time, Kenneth Porter <shiva at sewingwitch.com>
said:
> How would you implement the section here titled "Sendmail
> workaround" using Postfix?
http://www.postfix.org/postconf.5.html#recipient_delimiter

-- 
Chris Adams <linux at cmadams.net>

Le 20/09/2019 ? 14:49, Alexander Dalloz a ?crit :
> Please, forget about so call howtos or tutorials on the net. They
> are either dated, giving wrong ideas (no, you don't need a MySQL
> server to run Postfix), failing to explain why the author has done
> things the way he writes them up, or they are simply wrong /
> violating best practice.
Here are my so-called tutorials about Postfix with plenty of wrong
information, failing to explain everything:

https://www.microlinux.fr/tag/postfix/

Enjoy :o)

Cheers,

Niki

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7, place de l'?glise - 30730 Montpezat
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Mail : info at microlinux.fr
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Mob. : 06 51 80 12 12

On Sun, Sep 22, 2019 at 09:34:59PM +0200, Nicolas Kovacs
wrote:
> Le 20/09/2019 ? 14:49, Alexander Dalloz a ?crit :
> > Please, forget about so call howtos or tutorials on the net. They
> > are either dated, giving wrong ideas (no, you don't need a MySQL
> > server to run Postfix), failing to explain why the author has done
> > things the way he writes them up, or they are simply wrong /
> > violating best practice.
> 
> Here are my so-called tutorials about Postfix with plenty of wrong
> information, failing to explain everything:
> 
> https://www.microlinux.fr/tag/postfix/
> 
> Enjoy :o)
> 
> Cheers,
> 
> Niki
Thanks Niki! Google even does a pretty good job of translating them for
those of us who are Francophonally challended.

I find it humorous that it talks about "throwing" an application. :)
I guess the original was something like "launching", only in French.

-- 
---- Fred Smith -- fredex at fcshome.stoneham.ma.us
-----------------------------
                         God made him who had no sin
                      to be sin for us, so that in him
                 we might become the righteousness of God."
--------------------------- Corinthians 5:21 ---------------------------------