Estou tentando fazer algumas alterações no meu arquivo de configuração no sendmail usando este comando:
m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf
O problema é que não está funcionando, ou pelo menos eu tenho certeza que não está. Não há saída. Não para stderr ou para o arquivo sendmail.cf . Então, eu estou completamente perplexo, isso, e eu não posso disputar o google para me dar qualquer resultado para este problema específico, que tenho certeza que é um caso de m4 falhando por algum motivo.
E eu odeio colar em massa essa coisa toda, mas aqui está o meu arquivo mc ...
divert(-1)dnl
dnl #
dnl # This is the sendmail macro config file for m4. If you make changes to
dnl # /etc/mail/sendmail.mc, you will need to regenerate the
dnl # /etc/mail/sendmail.cf file by confirming that the sendmail-cf package is
dnl # installed and then performing a
dnl #
dnl # /etc/mail/make
dnl #
dnl include('/usr/share/sendmail-cf/m4/cf.m4')dnl
VERSIONID('setup for linux')dnl
OSTYPE('linux')dnl
dnl #
dnl # Do not advertize sendmail version.
dnl #
dnl define('confSMTP_LOGIN_MSG', '$j Sendmail; $b')dnl
dnl #
dnl # default logging level is 9, you might want to set it higher to
dnl # debug the configuration
dnl #
dnl define('confLOG_LEVEL', '9')dnl
dnl #
dnl # Uncomment and edit the following line if your outgoing mail needs to
dnl # be sent out through an external mail server:
dnl #
dnl define('SMART_HOST', 'smtp.your.provider')dnl
dnl #
define('confDEF_USER_ID', ''8:12'')dnl
dnl define('confAUTO_REBUILD')dnl
define('confTO_CONNECT', '1m')dnl
define('confTRY_NULL_MX_LIST', 'True')dnl
define('confDONT_PROBE_INTERFACES', 'True')dnl
define('PROCMAIL_MAILER_PATH', '/usr/bin/procmail')dnl
define('ALIAS_FILE', '/etc/aliases')dnl
define('STATUS_FILE', '/var/log/mail/statistics')dnl
define('UUCP_MAILER_MAX', '2000000')dnl
define('confUSERDB_SPEC', '/etc/mail/userdb.db')dnl
define('confPRIVACY_FLAGS', 'authwarnings,novrfy,noexpn,restrictqrun')dnl
define('confAUTH_OPTIONS', 'A')dnl
dnl #
dnl # The following allows relaying if the user authenticates, and disallows
dnl # plaintext authentication (PLAIN/LOGIN) on non-TLS links
dnl #
dnl define('confAUTH_OPTIONS', 'A p')dnl
dnl #
dnl # PLAIN is the preferred plaintext authentication method and used by
dnl # Mozilla Mail and Evolution, though Outlook Express and other MUAs do
dnl # use LOGIN. Other mechanisms should be used if the connection is not
dnl # guaranteed secure.
dnl # Please remember that saslauthd needs to be running for AUTH.
dnl #
dnl TRUST_AUTH_MECH('EXTERNAL DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
dnl define('confAUTH_MECHANISMS', 'EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
dnl #
dnl # Rudimentary information on creating certificates for sendmail TLS:
dnl # cd /etc/pki/tls/certs; make sendmail.pem
dnl # Complete usage:
dnl # make -C /etc/pki/tls/certs usage
dnl #
dnl define('confCACERT_PATH', '/etc/pki/tls/certs')dnl
dnl define('confCACERT', '/etc/pki/tls/certs/ca-bundle.crt')dnl
dnl define('confSERVER_CERT', '/etc/pki/tls/certs/sendmail.pem')dnl
dnl define('confSERVER_KEY', '/etc/pki/tls/certs/sendmail.pem')dnl
dnl #
dnl # This allows sendmail to use a keyfile that is shared with OpenLDAP's
dnl # slapd, which requires the file to be readble by group ldap
dnl #
dnl define('confDONT_BLAME_SENDMAIL', 'groupreadablekeyfile')dnl
dnl #
dnl define('confTO_QUEUEWARN', '4h')dnl
dnl define('confTO_QUEUERETURN', '5d')dnl
dnl define('confQUEUE_LA', '12')dnl
dnl define('confREFUSE_LA', '18')dnl
define('confTO_IDENT', '0')dnl
dnl FEATURE(delay_checks)dnl
FEATURE('no_default_msa', 'dnl')dnl
FEATURE('smrsh', '/usr/sbin/smrsh')dnl
FEATURE('mailertable', 'hash -o /etc/mail/mailertable.db')dnl
FEATURE('virtusertable', 'hash -o /etc/mail/virtusertable.db')dnl
FEATURE(redirect)dnl
FEATURE(always_add_domain)dnl
FEATURE(use_cw_file)dnl
FEATURE(use_ct_file)dnl
dnl #
dnl # The following limits the number of processes sendmail can fork to accept
dnl # incoming messages or process its message queues to 20.) sendmail refuses
dnl # to accept connections once it has reached its quota of child processes.
dnl #
dnl define('confMAX_DAEMON_CHILDREN', '20')dnl
dnl #
dnl # Limits the number of new connections per second. This caps the overhead
dnl # incurred due to forking new sendmail processes. May be useful against
dnl # DoS attacks or barrages of spam. (As mentioned below, a per-IP address
dnl # limit would be useful but is not available as an option at this writing.)
dnl #
dnl define('confCONNECTION_RATE_THROTTLE', '3')dnl
dnl #
dnl # The -t option will retry delivery if e.g. the user runs over his quota.
dnl #
FEATURE(local_procmail, '', 'procmail -t -Y -a $h -d $u')dnl
FEATURE('access_db', 'hash -T<TMPF> -o /etc/mail/access.db')dnl
FEATURE('blacklist_recipients')dnl
EXPOSED_USER('root')dnl
dnl #
dnl # For using Cyrus-IMAPd as POP3/IMAP server through LMTP delivery uncomment
dnl # the following 2 definitions and activate below in the MAILER section the
dnl # cyrusv2 mailer.
dnl #
dnl define('confLOCAL_MAILER', 'cyrusv2')dnl
dnl define('CYRUSV2_MAILER_ARGS', 'FILE /var/lib/imap/socket/lmtp')dnl
dnl #
dnl # The following causes sendmail to only listen on the IPv4 loopback address
dnl # 127.0.0.1 and not on any other network devices. Remove the loopback
dnl # address restriction to accept email from the internet or intranet.
dnl #
dnl DAEMON_OPTIONS('Port=smtp,Addr=127.0.0.1, Name=MTA')dnl
dnl #
dnl # The following causes sendmail to additionally listen to port 587 for
dnl # mail from MUAs that authenticate. Roaming users who can't reach their
dnl # preferred sendmail daemon due to port 25 being blocked or redirected find
dnl # this useful.
dnl #
dnl DAEMON_OPTIONS('Port=submission, Name=MSA, M=Ea')dnl
dnl #
dnl # The following causes sendmail to additionally listen to port 465, but
dnl # starting immediately in TLS mode upon connecting. Port 25 or 587 followed
dnl # by STARTTLS is preferred, but roaming clients using Outlook Express can't
dnl # do STARTTLS on ports other than 25. Mozilla Mail can ONLY use STARTTLS
dnl # and doesn't support the deprecated smtps; Evolution <1.1.1 uses smtps
dnl # when SSL is enabled-- STARTTLS support is available in version 1.1.1.
dnl #
dnl # For this to work your OpenSSL certificates must be configured.
dnl #
dnl DAEMON_OPTIONS('Port=smtps, Name=TLSMTA, M=s')dnl
dnl #
dnl # The following causes sendmail to additionally listen on the IPv6 loopback
dnl # device. Remove the loopback address restriction listen to the network.
dnl #
dnl DAEMON_OPTIONS('port=smtp,Addr=::1, Name=MTA-v6, Family=inet6')dnl
dnl #
dnl # enable both ipv6 and ipv4 in sendmail:
dnl #
dnl DAEMON_OPTIONS('Name=MTA-v4, Family=inet, Name=MTA-v6, Family=inet6')
dnl #
dnl # We strongly recommend not accepting unresolvable domains if you want to
dnl # protect yourself from spam. However, the laptop and users on computers
dnl # that do not have 24x7 DNS do need this.
dnl #
FEATURE('accept_unresolvable_domains')dnl
dnl #
dnl FEATURE('relay_based_on_MX')dnl
dnl #
dnl # Also accept email sent to "localhost.localdomain" as local email.
dnl #
LOCAL_DOMAIN('localhost.localdomain')dnl
dnl #
dnl # The following example makes mail from this host and any additional
dnl # specified domains appear to be sent from mydomain.com
dnl #
MASQUERADE_AS('ichangedthisforthepost-but-just-the-name.com')dnl
dnl #
dnl # masquerade not just the headers, but the envelope as well
dnl #
dnl FEATURE(masquerade_envelope)dnl
dnl #
dnl # masquerade not just @mydomainalias.com, but @*.mydomainalias.com as well
dnl #
dnl FEATURE(masquerade_entire_domain)dnl
dnl #
dnl MASQUERADE_DOMAIN(localhost)dnl
dnl MASQUERADE_DOMAIN(localhost.localdomain)dnl
dnl MASQUERADE_DOMAIN(mydomainalias.com)dnl
dnl MASQUERADE_DOMAIN(mydomain.lan)dnl
MAILER(smtp)dnl
MAILER(procmail)dnl
dnl MAILER(cyrusv2)dnl
Eu descobri a resposta por conta própria antes mesmo de receber um único comentário, ou qualquer coisa. O problema foi esta linha aqui:
dnl include('/usr/share/sendmail-cf/m4/cf.m4')dnl
Eu precisava descomentar:
include('/usr/share/sendmail-cf/m4/cf.m4')dnl
Foi isso ...