Log message:
postfix*: update to 3.8.4
20230815
Bugfix (bug introduced: 20140218): when opportunistic TLS fails
during or after the handshake, don't require that a probe
message spent a minimum time-in-queue before falling back to
plaintext. Problem reported by Serg. File: smtp/smtp.h.
20230819
Bugfix (defect introduced: 19980207): the valid_hostname()
check in the Postfix DNS client library was blocking unusual
but legitimate wildcard names (*.name) in some DNS lookup
results and lookup requests. Examples:
name class/type value
*.one.example IN CNAME *.other.example
*.other.example IN A 10.0.0.1
*.other.example IN TLSA ..certificate info...
Such syntax is blesed in RFC 1034 section 4.3.3.
This problem was reported first in the context of TLSA
record lookups. Files: util/valid_hostname.[hc],
dns/dns_lookup.c.
20230929
Bugfix (defect introduced Postfix 2.5, 20080104): the Postfix
SMTP server was waiting for a client command instead of
replying immediately, after a client certificate verification
error in TLS wrappermode. Reported by Andreas Kinzler. File:
smtpd/smtpd.c.
20231006
Usability: the Postfix SMTP server now attempts to log the
SASL username after authentication failure. In Postfix
logging, this appends ", sasl_username=xxx" after the reason
for SASL authentication failure. The logging replaces an
unavailable reason with "(reason unavailable)", and replaces
an unavailable sasl_username with "(unavailable)". Based
on code by Jozsef Kadlecsik. Files: xsasl/xsasl_server.c,
xsasl/xsasl_cyrus_server.c, smtpd/smtpd_sasl_glue.c.
20231026
Bugfix (defect introduced: Postfix 2.11): in forward_path,
the expression ${recipient_delimiter} would expand to an
empty string when a recipient address had no recipient
delimiter. Fixed by restoring Postfix 2.10 behavior to use
a configured recipient delimiter value. Reported by Tod
A. Sandman. Files: proto/postconf.proto, local/local_expand.c.
20231221
Security: with "smtpd_forbid_bare_newline = yes" (default
"no" for Postfix < 3.9), reply with "Error: bare <LF>
received" and disconnect when an SMTP client sends a line
ending in <LF>, violating the RFC 5321 requirement that
lines must end in <CR><LF>. This prevents SMTP smuggling
attacks that target a recipient at a Postfix server. For
backwards compatibility, local clients are excluded by
default with "smtpd_forbid_bare_newline_exclusions =
$mynetworks". Files: mantools/postlink, proto/postconf.proto,
global/mail_params.h, global/smtp_stream.c, global/smtp_stream.h,
smtpd/smtpd.c.
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Log message:
Update postfix to 3.1.2.
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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