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- Sendmail basic information
- Introduction
-
- For most system, this is probably the only form you will have to fill
- to get email going. This configuration generally differentiate email
- servers from "client" workstations.
-
- 11.. AAlliiaasseess ffoorr yyoouurr ssyysstteemm
-
- Email message which match the fully qualified name of your machine
- will be accept by _S_e_n_d_m_a_i_l. Other will be either bounce back or
- forward.
-
- You may want to accept email messages for different domains. Once
- situation is when you register with an Internet provider and he gives
- you one sub-domain of his own. You start using it. Later, you request
- your own domain. You still want to accept the old one, because many
- peoples knows you with this address.
-
- You are allowed to enter up to five alternative domain which will be
- accepted.
-
- Generally this section contains your official domain name which is
- different from the name of your machine.
-
- 22.. PPrreesseenntt yyoouurr ssyysstteemm aass
-
- Even if email may come from different machines in your organization,
- you may want to hide this fact and present email as if they were from
- a single machine or domain.
-
- This field is normally used in most setup and simply contain your
- official domain name.
-
- 33.. mmaaiill hhoosstt
-
- In most organization, there is one machine which store email for all
- users, even if the email may originated from different machines. _U_n_i_x
- machines are multiuser. It is possible for a user to send email to
- another user on this machine. The default behavior is to store the
- message in the mail folder of the user on this machine. This is often
- inappropriate. _U_n_i_x machines are not only multiuser, but network
- oriented. This user (the recipient) may very well have accounts on
- many machines on the network (often on all machines) and may elect to
- read his email messages on another machine. Having his email messages
- spread-ed on all machines on the net is not useful.
-
- You just specify the fully qualified name of the mail server of the
- organization and all email messages will be forward to it.
-
- 44.. SSmmaarrtt hhoosstt
-
- Most machine on a net lack the connectivity to forward email properly.
- You can specify the name of a machine which knows better. In many
- organization, this is often the same as the mail host.
-
- Unlike the mail host, the smart host may be reached by different
- mailer transport such as EESSMMTTPP and UUUUCCPP.
-
- 55.. SSmmaarrtt hhoosstt''ss mmaaiilleerr
-
- You must specify how to reach the smart host. If you choose EESSMMTTPP,
- then you must specify a fully qualified name for the smart host.
-
- If you specify UUUUCCPP, then you must specify a uucp name for the smart
- host.
-
- 66.. FFeeaattuurreess
-
- 66..11.. NNoo bbaattcchhiinngg ffoorr uuuuccpp mmaaiill
-
- 66..22.. MMaaxx ssiizzee ffoorr uuuuccpp mmeessssaaggeess
-
- UUCP message may be limited. Larger message will be dropped. This is
- useful for slow modem link. Setting the maximum to 0 will disable this
- feature (no limit).
-
- 66..33.. DDeelliivveerr llooccaallllyy ttoo uusseerrss
-
- Enter the name of users for whom you want to defeat the mail host
- definition. Messages will always be stored locally for those users.
- This feature is normally used for administrative pseudo user (root for
- one).
-
- 66..44.. NNoo mmaassqquueerraaddee ffrroomm uusseerrss
-
- You may want to defeat the "present your system as" field for some
- users. One is root. This allow the recipient to differentiate easily
- from which system (which root ?) the message originates.
-
- 66..55.. SSppeecciiaall rroouuttiinngg ddaattaabbaassee ffoorrmmaatt
-
- _S_e_n_d_m_a_i_l may use several format for some of its database. It
- generally default to the ddbbmm format. Please note that that some
- _S_e_n_d_m_a_i_l only support one format (dbm). This is a compile time option.
-
- 77.. _S_e_n_d_m_a_i_l aanndd tthhee _D_N_S
-
- _S_e_n_d_m_a_i_l makes heavy use of the _D_N_S. Machine with no _I_n_t_e_r_n_e_t
- connectivity at all (even behind a firewall) may want to deactivate
- DNS usage.
-
- On the other end, machines with normal _D_N_S connectivity should force
- _D_N_S usage.
-
-