Postfix stable release 3.4.8

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Postfix stable release 3.4.8

Wietse Venema
[An on-line version of this announcement will be available at
http://www.postfix.org/announcements/postfix-3.4.8.html]

Fixed in Postfix 3.4:

  * Fix for an Exim interoperability problem when postscreen after-220
    checks are enabled. Bug introduced in Postfix 3.4: the code
    that detected "PIPELINING after BDAT" looked at the wrong
    variable. The warning now says "BDAT without valid RCPT", and
    the error is no longer treated as a command PIPELINING error,
    thus allowing mail to be delivered. Meanwhile, Exim has been
    fixed to stop sending BDAT commands when postscreen rejects all
    RCPT commands.

  * Usability bug, introduced in Postfix 3.4: the parser for
    key/certificate chain files rejected inputs that contain an EC
    PARAMETERS object. While this is technically correct (the
    documentation says what types are allowed) this is surprising
    behavior because the legacy cert/key parameters will accept
    such inputs. For now, the parser skips object types that it
    does not know about for usability, and logs a warning because
    ignoring inputs is not kosher.

  * Bug introduced in Postfix 2.8: don't gratuitously enable all
    after-220 tests when only one such test is enabled. This made
    selective tests impossible with 'good' clients. This will be
    fixed in older Postfix versions at some later time.

You can find the updated Postfix source code at the mirrors listed
at http://www.postfix.org/.

        Wietse
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Re: Postfix stable release 3.4.8

Postfix User-2
On Wed, 27 Nov 2019 10:38:58 -0500 (EST), Wietse Venema stated:

>[An on-line version of this announcement will be available at
>http://www.postfix.org/announcements/postfix-3.4.8.html]
>
>Fixed in Postfix 3.4:
>
>  * Fix for an Exim interoperability problem when postscreen after-220
>    checks are enabled. Bug introduced in Postfix 3.4: the code
>    that detected "PIPELINING after BDAT" looked at the wrong
>    variable. The warning now says "BDAT without valid RCPT", and
>    the error is no longer treated as a command PIPELINING error,
>    thus allowing mail to be delivered. Meanwhile, Exim has been
>    fixed to stop sending BDAT commands when postscreen rejects all
>    RCPT commands.
>
>  * Usability bug, introduced in Postfix 3.4: the parser for
>    key/certificate chain files rejected inputs that contain an EC
>    PARAMETERS object. While this is technically correct (the
>    documentation says what types are allowed) this is surprising
>    behavior because the legacy cert/key parameters will accept
>    such inputs. For now, the parser skips object types that it
>    does not know about for usability, and logs a warning because
>    ignoring inputs is not kosher.
>
>  * Bug introduced in Postfix 2.8: don't gratuitously enable all
>    after-220 tests when only one such test is enabled. This made
>    selective tests impossible with 'good' clients. This will be
>    fixed in older Postfix versions at some later time.
>
>You can find the updated Postfix source code at the mirrors listed
>at http://www.postfix.org/.
>
> Wietse

I assume that this bug either does not exist in the "3.5" beta
versions, or has been squashed.
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Re: Postfix stable release 3.4.8

Wietse Venema
Gerard E. Seibert:
> I assume that this bug either does not exist in the "3.5" beta
> versions, or has been squashed.

These fixes were tested in Postfix 3.5, and therefore exposed to
real traffic, before they were released in the stable release.

        Wietse
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Re: Postfix stable release 3.4.8

Wesley Peng-9
In reply to this post by Wietse Venema
Hi Wietse

on 2019/11/27 23:38, Wietse Venema wrote:
> [An on-line version of this announcement will be available at
> http://www.postfix.org/announcements/postfix-3.4.8.html]
>
> Fixed in Postfix 3.4:

It's really nice to see postfix gets continuous development for these
many years. Wish it becomes more and more stronger.

Thanks for your team's work.

regards.