• sendmail snapshot 8.17.0.3

    From Claus =?iso-8859-1?Q?A=DFmann?= @21:1/5 to All on Wed Jun 23 05:46:06 2021
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    sendmail snapshot 8.17.0.3 is available for testing. It fixes a
    performance problem when USE_EAI is enabled and reduces the
    requirements when -U needs to be specified during mail submission.

    8.17.1/8.17.1 202X/XX/XX
    Deprecation notice: due to compatibility problems with some
    third party code, we plan to finally switch from K&R
    to ANSI C. If you are using sendmail on a system
    which does not have a compiler for ANSI C contact us
    with details as soon as possible so we can determine
    how to proceed.
    Experimental support for SMTPUTF8 (EAI, see RFC 6530-6533)
    is available when using the compile time option USE_EAI
    (see also devtools/Site/site.config.m4.sample for other
    required settings) and the cf option SMTPUTF8.
    If a mail submission via the command line requires
    the use of SMTPUTF8, e.g., because a header uses UTF-8
    encoding, but the addresses on the command line are all
    ASCII, then the new option -U must be used, and
    the cf option SMTPUTF8 must be set in submit.cf.
    Please test and provide feedback.
    Experimental support for SMTP MTA Strict Transport Security
    (MTA-STS, see RFC 8461) is available when using
    - the compile time option _FFR_MTA_STS (which requires
    STARTTLS, MAP_REGEX, SOCKETMAP, and _FFR_TLS_ALTNAMES),
    - FEATURE(sts), which implicitly sets the cf option
    StrictTransportSecurity,
    - postfix-mta-sts-resolver, see
    https://github.com/Snawoot/postfix-mta-sts-resolver.git
    New ruleset check_other which is called for all unknown SMTP
    commands in the server and for commands which do not
    have specific rulesets, e.g., NOOP and VERB.
    New ruleset clt_features which can be used to select features
    in the SMTP client per server. Currently only two
    flags are available: D/M to disable DANE/MTA-STS,
    respectively.
    Avoid leaking session macros for an envelope between
    delivery attempts to different servers. This problem
    could have affected check_compat.
    Avoid leaking actual SMTP replies between delivery attempts
    to different servers which could cause bogus logging
    of reply= entries.
    Change default SMTP reply code for STARTTLS related problems
    from 403 to 454 to better match the RFCs.
    Fix a theoretical buffer overflow when encountering an
    unknown/unsupported socket address family on an
    operating system where sa_data is larger than 30
    (the standard is 14). Based on patch by Toomas Soome.
    Previously the commands GET, POST, CONNECT, or USER terminate
    a connection immediately only if sent as first command.
    Now this is also done if any of these is sent directly
    after STARTTLS or if the 'h' option is set via
    srv_features.
    CDB map locking has been changed so a sendmail process which
    does have a CDB map open does not block an in-place
    update of the map by makemap. The simple workaround
    for that problem in earlier versions is to create
    the map under a different name and then move it
    into place.
    CONFIG: New FEATURE(`check_other') to provide a default
    check_other ruleset.
    CONFIG: FEATURE(`tls_failures') is deprecated and will be
    removed in future versions because it has a fundamental
    problem: it is message oriented but STARTTLS is
    session oriented. For example, having multiple
    RCPTs in one envelope for different destinations,
    with different temporary errors, does not work
    properly, as the persistent macro applies to all
    RCPTs and hence implicitly to all destinations (servers).
    The option TLSFallbacktoClear should be used if needed.
    MAIL.LOCAL: Enhance some error messages to simplify
    troubleshooting.
    Portability:
    Add support for Darwin 19 & 20.
    NOTE: File locking using fcntl() does not interoperate
    with Berkeley DB 5.x (and probably later). Use
    CDB, flock() (-DHASFLOCK), or an earlier Berkeley
    DB version. Problem noted by Harald Hannelius.
    New Files:
    cf/feature/check_other.m4
    cf/feature/sts.m4
    devtools/OS/Darwin.19.x
    devtools/OS/Darwin.20.x
    include/sm/ixlen.h
    libsm/ilenx.c
    libsm/lowercase.c
    libsm/strcaseeq.c
    libsm/t-ixlen.c
    libsm/t-ixlen.sh
    libsm/t-streq.c
    libsm/t-streq.sh
    libsm/utf8_valid.c
    libsm/uxtext_unquote.c
    libsm/xleni.c
    libsmutil/t-lockfile.c
    libsmutil/t-lockfile-0.sh
    libsmutil/t-maplock-0.sh

    Available at:
    https://ftp.sendmail.org/snapshots/sendmail.8.17.0.3.tar.gz https://ftp.sendmail.org/snapshots/sendmail.8.17.0.3.tar.gz.sig

    SHA256 (sendmail.8.17.0.3.tar.gz) = 0b8cf894784fad367babca47a99e3a490882d4241258500bb827f0439e49749e
    SHA256 (sendmail.8.17.0.3.tar.gz.sig) = 64e4e7f5031c7806465db914de45d028363a321e595cc0ed7c574c637aa3622f
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    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Alex Haut@21:1/5 to All on Thu Jul 8 05:20:36 2021
    On Wednesday, June 23, 2021 at 1:55:02 AM UTC-4, Claus Aßmann wrote:
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    sendmail snapshot 8.17.0.3 is available for testing. It fixes a
    performance problem when USE_EAI is enabled and reduces the
    requirements when -U needs to be specified during mail submission.


    My small personal email server was downgraded last night back to 8.16, under suspicions of odd behavior. I noticed quite a few sessions being recorded as "remote server did not issue MAIL/EXPN/VRFY/ETRN during connection". True enough, I got external
    email messages from multiple days ago delivered in a matter of a few hours afterwards.

    The OS is a Slackware -current.

    # ./sendmail -bt -d0.15
    Version 8.17.0.3
    Compiled with: ALLOW_255 DANE DNSMAP IPV6_FULL LOG MAP_REGEX MATCHGECOS
    MILTER MIME7TO8 MIME8TO7 NAMED_BIND NETINET NETINET6 NETUNIX
    NEWDB=4.8 NIS PIPELINING SASLv2 SCANF SOCKETMAP STARTTLS
    TCPWRAPPERS TLS_EC TLS_VRFY_PER_CTX USERDB USE_EAI XDEBUG
    OS Defines: ADDRCONFIG_IS_BROKEN DNSSEC_TEST HASFCHOWN HASFCHMOD
    HASGETDTABLESIZE HASINITGROUPS HASLSTAT HASNICE HASRANDOM
    HASRRESVPORT HASSETREGID HASSETREUID HASSETRLIMIT HASSETSID
    HASSETVBUF HASURANDOMDEV HASSTRERROR HASUNAME HASUNSETENV
    HASWAITPID IDENTPROTO NEEDSGETIPNODE REQUIRES_DIR_FSYNC SFS_VFS
    USE_DOUBLE_FORK USE_SIGLONGJMP
    Kernel symbols: /boot/vmlinux
    Conf file: /etc/mail/submit.cf (default for MSP)
    Conf file: /etc/mail/sendmail.cf (default for MTA)
    Pid file: /var/run/sendmail.pid (default)
    libsm Defines: SM_CONF_LONGLONG SM_CONF_MEMCHR SM_CONF_MSG SM_CONF_SEM
    SM_CONF_SIGSETJMP SM_CONF_SHM SM_CONF_SSIZE_T SM_CONF_STDBOOL_H
    SM_CONF_STDDEF_H SM_CONF_SYS_CDEFS_H SM_CONF_UID_GID
    DO_NOT_USE_STRCPY SM_HEAP_CHECK SM_OS=sm_os_linux SM_VA_STD
    FFR Defines: _FFR_MTA_STS _FFR_TLS_ALTNAMES _FFR_LOGASIS=1
    OpenSSL: compiled 0x101010bf
    OpenSSL: linked 0x101010bf
    Canonical name: server.domain
    UUCP nodename: server.domain
    a.k.a.: server
    a.k.a.: [xxx.xxx.xxx.xxx]
    a.k.a.: [127.0.0.1]
    Conf file: /etc/mail/sendmail.cf (selected)
    Pid file: /var/run/sendmail.pid (selected)

    On my .mc file, since 8.16 does not support the below 8.17 settings: dnl#FEATURE(`sts')dnl
    LOCAL_CONFIG
    dnl#O SmtpUTF8=True

    And I start sendmail with /usr/sbin/sendmail -L sm-mta -bd -q25m.

    Interesting enough, emails from Google's GMail were coming flawlessly, but not from many other places.

    Any hints where to start looking at?

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)