[gentoo-user] anyone using postfix 3.0.0

[gentoo-user] anyone using postfix 3.0.0

[gottlieb]

A new stable mail-mta/postfix hit the tree recently 3.0.0.

Is anyone running it?  I built it on a test machine but it doesn't seem
to work.  However, I don't use that machine much (and never for mail) so
it is very possibly mis-configured for mail.  Before I build the new
postscript for my real machine I would like to hear that those
postscript users on this list are not having problems.

thanks,
allan

Re: [gentoo-user] anyone using postfix 3.0.0

[Wolfgang Mueller]

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> Is anyone running it? I built it on a test machine but it doesn't seem
> to work. However, I don't use that machine much (and never for mail)
> so it is very possibly mis-configured for mail. Before I build the
> new postscript for my real machine I would like to hear that those
> postscript users on this list are not having problems.

I updated to postfix 3.0 three hours ago on my production server - no
problems whatsoever. No changes to main.cf or any other configuration
file are needed (you may want to add `compatibility_level = x' as per:
http://www.postfix.org/COMPATIBILITY_README.html, though).

For changes, see
http://www.postfix.org/announcements/postfix-3.0.0.html

-- 
Wolfgang Mueller / vehk.de / 0xc543cfce9465f573
 
Ed is the standard text editor.

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Re: [gentoo-user] anyone using postfix 3.0.0

[gottlieb]

On Wed, Mar 25 2015, Wolfgang Mueller wrote:

>> Is anyone running it? I built it on a test machine but it doesn't seem
>> to work. However, I don't use that machine much (and never for mail)
>> so it is very possibly mis-configured for mail. Before I build the
>> new postscript for my real machine I would like to hear that those
>> postscript users on this list are not having problems.
>
> I updated to postfix 3.0 three hours ago on my production server - no
> problems whatsoever. No changes to main.cf or any other configuration
> file are needed (you may want to add `compatibility_level = x' as per:
> http://www.postfix.org/COMPATIBILITY_README.html, though).
>
> For changes, see
> http://www.postfix.org/announcements/postfix-3.0.0.html

I think I see.
After I upgrade and do nothing I will be running in backwards
compatibility "mode".
Then I run for a while, check the logs and issue the appropriate
postconf commands.

Not so clear is when do you turn off backwards compatibility (i.e. set
the level).  Does postfix determine the level right away or should I let
it run for a few weeks so it sees a lot of mail?

thanks,
allan

Re: [gentoo-user] anyone using postfix 3.0.0

[Wolfgang Mueller]

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On Wed, Mar 25, 2015 at 22:34:10 -0400, gottlieb@nyu.edu wrote:
> Then I run for a while, check the logs and issue the appropriate
> postconf commands.

Yes, exactly.

You can also manually go through the settings mentioned in the
"Overview" section of COMPATIBILITY_README, to see if anything needs
changing in main.cf/master.cf. That's what I did.

> Not so clear is when do you turn off backwards compatibility (i.e. set
> the level).  Does postfix determine the level right away or should I let
> it run for a few weeks so it sees a lot of mail?

The documentation is not clear on this, but I don't think there's any
kind of logic behind the compatibility level postfix mentions in its
log - it's just the hard-coded version specifier, the "most recent"
compatibility level.

You can turn off the safety net once you made sure that postfix is
configured the way you want; that is, once you made sure that no more
backwards-compatible default settings would need to be made permanent.

For example, relay_domains used to default to $mydestination. With
postfix 3.0.0, it defaults to:
relay_domains = ${{$compatibility_level} < {2} ? {$mydestination} : {}}

If you rely on the default setting of relay_domains (i.e. you don't set
it explicitly in main.cf) you may need to change it now.

-- 
Wolfgang Mueller / vehk.de / 0xc543cfce9465f573
 
Ed is the standard text editor.

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Re: [gentoo-user] anyone using postfix 3.0.0

[gottlieb]

On Wed, Mar 25 2015, Wolfgang Mueller wrote:

> On Wed, Mar 25, 2015 at 22:34:10 -0400, gottlieb@nyu.edu wrote:
>> Then I run for a while, check the logs and issue the appropriate
>> postconf commands.
>
> Yes, exactly.
>
> You can also manually go through the settings mentioned in the
> "Overview" section of COMPATIBILITY_README, to see if anything needs
> changing in main.cf/master.cf. That's what I did.
>
>> Not so clear is when do you turn off backwards compatibility (i.e. set
>> the level).  Does postfix determine the level right away or should I let
>> it run for a few weeks so it sees a lot of mail?
>
> The documentation is not clear on this, but I don't think there's any
> kind of logic behind the compatibility level postfix mentions in its
> log - it's just the hard-coded version specifier, the "most recent"
> compatibility level.
>
> You can turn off the safety net once you made sure that postfix is
> configured the way you want; that is, once you made sure that no more
> backwards-compatible default settings would need to be made permanent.
>
> For example, relay_domains used to default to $mydestination. With
> postfix 3.0.0, it defaults to:
> relay_domains = ${{$compatibility_level} < {2} ? {$mydestination} : {}}
>
> If you rely on the default setting of relay_domains (i.e. you don't set
> it explicitly in main.cf) you may need to change it now.

Thanks.

It now looks as though my test machine does work; I forgot to restart
postfix.  So today when I booted it up it does seem to process mail.

Thanks again,
allan