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3.1.0
The main changes in no particular order are:
* "postfix tls" command to simplify setup of opportunistic TLS,
and to simplify SMTP server key/certificate management.
* Positive and negative DNS reply TTL support in postscreen(8).
* SASL AUTH rate limit in the Postfix SMTP server.
* A safety limit on the number of address verify requests.
* JSON-format Postfix queue listing.
* Destination-independent delivery rate delay
For details, see the RELEASE_NOTES file.
3.1.1
Fixed in all supported releases:
* The Milter "replace sender" (SMFIR_CHGFROM) request lost an
address that was added with sender_bcc_maps, resulting in a
"rcpt count mismatch" warning. Reported by Joerg Backschues.
This defect was introduced with Postfix 2.6.
* The "bad filetype" example in the header_checks(5) manpage
falsely rejected Content- headers with ``name="example";
x-apple-part-url="example.com"''. Reported by Cedric Knight.
This defect was introduced with Postfix 2.6.
3.1.2
Fixed with Postfix 3.1.2:
* Changes to make Postfix build with OpenSSL 1.1.0.
Fixed with Postfix 3.1.2 and 3.0.6:
* The makedefs script ignored readme_directory=pathname overrides.
Fix by Todd C. Olson.
* The tls_session_ticket_cipher documentation says that the default
cipher for TLS session tickets is aes-256-cbc, but the implemented
default was aes-128-cbc. Note that TLS session ticket keys are
rotated after 1/2 hour, to limit the impact of attacks on session
ticket keys.
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Database and regexp map functionality is now split into separate packages:
- postfix-cdb
- postfix-ldap
- postfix-lmdb
- postfix-mysql
- postfix-pcre
- postfix-pgsql
- postfix-sqlite
Upstream changelog follows.
Postfix 3.0.2
-------------
No delta against 2.11.6.
Postfix 3.0.1
-------------
- Build error when compiling the Postfix SMTP server with SASL support
but no TLS support.
- The DNS "resource record to text" converter, used for xxx_dns_reply_filter
pattern matching, appended a '.' to TXT record resource values.
- The postscreen(8) manpage specified an incorrect Postfix version number
for the postscreen_dnsbl_timeout parameter.
- The postfix-install script expanded macros in parameter values when
trying to detect parameter overrides, causing unnecessary main.cf updates
during "postfix start" etc.
- Some low-level cleanup of UTF-8 string handling with no visible change
in behavior (besides better performance).
Postfix 3.0.0
-------------
- SMTPUTF8 support for internationalized domain names and address
localparts as defined in RFC 6530 and related documents.
- Support for Postfix dynamically-linked libraries and database plugins.
- An OPT-IN safety net for the selective adoption of new Postfix default
settings. If you do nothing, the old Postfix default settings *should*
remain in effect (complain to your downstream maintainer if that is not
the case).
- Support for operations on multiple lookup tables. The
pipemap:{map1,map2...} database type implements a pipeline of lookup
tables where the result from one lookup table becomes a query for
the next table; the unionmap:{map1,map2,...} database type sends the
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