sendmail.0

< linux网络编程工具>>配套源码

       SaveFromLine
              Save UNIX-style From lines at  the  front  of  mes-
              sages.

       MaxHopCount=_N
              The maximum number of times a message is allowed to
              ``hop'' before we decide it is in a loop.

       IgnoreDots
              Do not take dots on a line by themselves as a  mes-
              sage terminator.

       SendMimeErrors
              Send  error  messages  in MIME format.  If not set,
              the DSN (Delivery Status Notification) SMTP  exten-
              sion is disabled.

       ConnectionCacheTimeout=_t_i_m_e_o_u_t
              Set connection cache timeout.

       ConnectionCacheSize=_N
              Set connection cache size.

       LogLevel=_n
              The log level.



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SENDMAIL(8)                                           SENDMAIL(8)


       MeToo=_F_a_l_s_e
              Don't  send  to  ``me''  (the sender) if I am in an
              alias expansion.

       CheckAliases
              Validate the right hand side of  aliases  during  a
              newaliases(1) command.

       OldStyleHeaders
              If  set,  this  message may have old style headers.
              If not set, this message is guaranteed to have  new
              style  headers  (i.e.,  commas  instead  of  spaces
              between addresses).  If set, an adaptive  algorithm
              is  used  that  will correctly determine the header
              format in most cases.

       QueueDirectory=_q_u_e_u_e_d_i_r
              Select the directory in which to queue messages.

       StatusFile=_f_i_l_e
              Save statistics in the named file.

       Timeout.queuereturn=_t_i_m_e
              Set the timeout  on  undelivered  messages  in  the
              queue  to  the  specified time.  After delivery has
              failed (e.g., because of a  host  being  down)  for
              this  amount  of  time,  failed  messages  will  be
              returned to the sender.  The default is five  days.

       UserDatabaseSpec=_u_s_e_r_d_a_t_a_b_a_s_e
              If  set,  a  user database is consulted to get for-
              warding information.   You  can  consider  this  an
              adjunct  to the aliasing mechanism, except that the
              database is intended to be distributed; aliases are
              local to a particular host.  This may not be avail-
              able if your sendmail  does  not  have  the  USERDB
              option compiled in.

       ForkEachJob
              Fork each job during queue runs.  May be convenient
              on memory-poor machines.

       SevenBitInput
              Strip incoming messages to seven bits.

       EightBitMode=_m_o_d_e
              Set the handling of eight bit input  to  seven  bit
              destinations  to  _m_o_d_e:  m (mimefy) will convert to
              seven-bit MIME format, p (pass)  will  pass  it  as
              eight bits (but violates protocols), and s (strict)
              will bounce the message.

       MinQueueAge=_t_i_m_e_o_u_t
              Sets how long a  job  must  ferment  in  the  queue



                   $Date: 2000/09/07 21:14:00 $                 6





SENDMAIL(8)                                           SENDMAIL(8)


              between attempts to send it.

       DefaultCharSet=_c_h_a_r_s_e_t
              Sets  the default character set used to label 8-bit
              data that is not otherwise labelled.

       DialDelay=_s_l_e_e_p_t_i_m_e
              If opening a connection fails, sleep for  _s_l_e_e_p_t_i_m_e
              seconds  and  try  again.  Useful on dial-on-demand
              sites.

       NoRecipientAction=_a_c_t_i_o_n
              Set the behaviour when there are no recipient head-
              ers  (To:,  Cc:  or Bcc:) in the message to _a_c_t_i_o_n:
              none leaves the message unchanged,  add-to  adds  a
              To: header with the envelope recipients, add-appar-
              ently-to adds an  Apparently-To:  header  with  the
              envelope  recipients,  add-bcc  adds  an empty Bcc:
              header, and add-to-undisclosed adds a header  read-
              ing `To: undisclosed-recipients:;'.

       MaxDaemonChildren=_N
              Sets  the maximum number of children that an incom-
              ing SMTP daemon will allow to spawn at any time  to
              _N.

       ConnectionRateThrottle=_N
              Sets  the  maximum number of connections per second
              to the SMTP port to _N.

       In aliases, the first character of a name may be a  verti-
       cal bar to cause interpretation of the rest of the name as
       a command to pipe the mail to.  It  may  be  necessary  to
       quote  the  name  to  keep  sseennddmmaaiill  from suppressing the
       blanks from between  arguments.   For  example,  a  common
       alias is:

              msgs: "|/usr/bin/msgs -s"

       Aliases  may also have the syntax ``:include:_f_i_l_e_n_a_m_e'' to
       ask sseennddmmaaiill to read the named file for a list of  recipi-
       ents.  For example, an alias such as:

              poets: ":include:/usr/local/lib/poets.list"

       would  read  _/_u_s_r_/_l_o_c_a_l_/_l_i_b_/_p_o_e_t_s_._l_i_s_t  for  the  list  of
       addresses making up the group.

       SSeennddmmaaiill returns an exit status describing  what  it  did.
       The codes are defined in <_s_y_s_e_x_i_t_s_._h>:

       EX_OK  Successful completion on all addresses.





                   $Date: 2000/09/07 21:14:00 $                 7





SENDMAIL(8)                                           SENDMAIL(8)


       EX_NOUSER
              User name not recognized.

       EX_UNAVAILABLE
              Catchall   meaning  necessary  resources  were  not
              available.

       EX_SYNTAX
              Syntax error in address.

       EX_SOFTWARE
              Internal software error, including bad arguments.

       EX_OSERR
              Temporary operating system error, such as  ``cannot
              fork''.

       EX_NOHOST
              Host name not recognized.

       EX_TEMPFAIL
              Message  could  not  be  sent  immediately, but was
              queued.

       If invoked as nneewwaalliiaasseess, sseennddmmaaiill will rebuild the  alias
       database.   If  invoked  as mmaaiillqq, sseennddmmaaiill will print the
       contents of the mail queue.  If invoked as hhoossttssttaatt, sseenndd--
       mmaaiill  will  print the persistent host status database.  If
       invoked as ppuurrggeessttaatt, sseennddmmaaiill will purge expired  entries
       from  the  persistent host status database.  If invoked as
       ssmmttppdd, sseennddmmaaiill will act as a daemon, as if the --bbdd option
       were specified.

NNOOTTEESS
       sseennddmmaaiill  often  gets  blamed  for  many problems that are
       actually the result of other problems, such as overly per-
       missive  modes  on directories.  For this reason, sseennddmmaaiill
       checks the modes on system directories and files to deter-
       mine if they can be trusted.  Although these checks can be
       turned off and your system security reduced by setting the
       DDoonnttBBllaammeeSSeennddmmaaiill  option,  the permission problems should
       be fixed.  For more information, see:

       _h_t_t_p_:_/_/_w_w_w_._s_e_n_d_m_a_i_l_._o_r_g_/_t_i_p_s_/_D_o_n_t_B_l_a_m_e_S_e_n_d_m_a_i_l_._h_t_m_l

FFIILLEESS
       Except for the file _/_e_t_c_/_m_a_i_l_/_s_e_n_d_m_a_i_l_._c_f itself the  fol-
       lowing  pathnames  are  all  specified  in _/_e_t_c_/_m_a_i_l_/_s_e_n_d_-
       _m_a_i_l_._c_f.  Thus, these values are only approximations.


        /etc/mail/aliases
              raw data for alias names




                   $Date: 2000/09/07 21:14:00 $                 8





SENDMAIL(8)                                           SENDMAIL(8)


        /etc/mail/aliases.db
              data base of alias names

        /etc/mail/sendmail.cf
              configuration file

        /etc/mail/helpfile
              help file

        /etc/mail/statistics
              collected statistics

        /var/spool/mqueue/*
              temp files

SSEEEE AALLSSOO
       binmail(1),  mail(1),  rmail(1),  syslog(3),   aliases(5),
       mailaddr(7), rc(8)

       DARPA   Internet  Request  For  Comments  _R_F_C_8_1_9,  _R_F_C_8_2_1,
       _R_F_C_8_2_2.  _S_e_n_d_m_a_i_l _I_n_s_t_a_l_l_a_t_i_o_n _a_n_d _O_p_e_r_a_t_i_o_n _G_u_i_d_e, No. 8,
       SMM.

       http://www.sendmail.org/

HHIISSTTOORRYY
       The sseennddmmaaiill command appeared in 4.2BSD.






























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