%general-entities; ]> $LastChangedBy$ $Date$ Sendmail-&sendmail-version; Sendmail Introduction to <application>Sendmail</application> The Sendmail package contains a Mail Transport Agent (MTA). Package information Download (HTTP): Download (FTP): Download size: &sendmail-size; Estimated disk space required: &sendmail-buildsize; Estimated build time: &sendmail-time; <application>Sendmail</application> dependencies Required and Optional , , , , , nph, and or (for creating PDF documentation) Installation of <application>Sendmail</application> Before building Sendmail, create the users, groups and directories that Sendmail requires with the following commands issued as the root user: groupadd smmsp && groupadd mail && useradd -c "Sendmail Daemon" -g smmsp -G mail smmsp && chmod 1777 /var/mail && mkdir /var/spool/mqueue Install Sendmail with the following commands: cat > devtools/Site/site.config.m4 << "EOF" define(`confMANGRP',`root') define(`confMANOWN',`root') define(`confSBINGRP',`root') define(`confUBINGRP',`root') define(`confUBINOWN',`root') EOF cd sendmail && sh Build && cd ../cf/cf && cp generic-linux.mc sendmail.mc && sh Build sendmail.cf Now, as the root user: install -v -d -m755 /etc/mail && sh Build install-cf && cd ../../ && sh Build install && cp -v -R cf/* /etc/mail && cp -v cf/cf/{submit,sendmail}.mc /etc/mail && for manpage in sendmail editmap mailstats makemap praliases smrsh do install -v -m444 $manpage/$manpage.8 /usr/share/man/man8 done && install -v -m444 sendmail/aliases.5 /usr/share/man/man5 && install -v -m444 sendmail/mailq.1 /usr/share/man/man1 && install -v -m444 sendmail/newaliases.1 /usr/share/man/man1 && install -v -m444 vacation/vacation.1 /usr/share/man/man1 Note: See the source tree sendmail/README file for information on linking optional packages into the build. Use the example below, which adds support for tcpwrappers, SASL and StartTLS as a starting point. Of course, modify it to suit your particular needs. cat >> devtools/Site/site.config.m4 << "EOF" APPENDDEF(`confENVDEF',`-DSTARTTLS -DTCPWRAPPERS -DSASL') APPENDDEF(`confLIBS', `-lssl -lcrypto -lwrap -lsasl2') APPENDDEF(`confINCDIRS', `-I/usr/include/sasl') EOF Install the Sendmail Installation and Operations Guide with the following commands: cd doc/op && sed -i -e 's/groff/GROFF_NO_SGR=1 groff/' Makefile && make op.txt op.pdf Now, as the root user: install -v -d -m755 /usr/share/doc/sendmail-&sendmail-version; && install -v -m644 op.ps op.txt op.pdf \ /usr/share/doc/sendmail-&sendmail-version; && cd ../../ Note: remove op.pdf from the make and install commands if you don't have Ghostscript installed. Command explanations cat > devtools/Site/site.config.m4 << "EOF": This creates a configuration file changing some of the default settings. sh Build; sh Build sendmail.cf; sh Build install-cf; sh Build install: Sendmail uses an m4 based build script to create the various Makefile's. These commands build and install the package. for manpage in...;do...;done; install ...: The man pages are installed already formatted and man displays them somewhat garbled. These commands replace the formatted pages with pages man can display properly. Configuring <application>Sendmail</application> Config files /etc/mail/* /etc/mail/* Configuration information Create the /etc/mail/local-host-names and /etc/mail/aliases files using the following commands as the root user: echo $(hostname) > /etc/mail/local-host-names cat > /etc/mail/aliases << "EOF" postmaster: root MAILER-DAEMON: root EOF newaliases -v Sendmail's primary configuration file, /etc/mail/sendmail.cf, is complex and not meant to be directly edited. The recommended method to make changes is to modify /etc/mail/sendmail.mc, and various m4 files, then run the m4 macro processor from within /etc/mail as follows: m4 m4/cf.m4 sendmail.mc > sendmail.cf A full explanation of the files to modify, and the available parameters can be found in /etc/mail/README. To automate the running of Sendmail at startup, install the /etc/rc.d/init.d/sendmail init script included in the package. sendmail make install-sendmail The -qNm option to sendmail, where N is number of minutes, controls how often Sendmail will process the mail queue. A default of 5 minutes is used in the init script. Individual workstation users may want to set this as low as 1 minute, large installations handling more mail may want to set it higher. Contents Installed Programs Installed Libraries Installed Directories editmap, hoststat, mailstats, mailq, makemap, newaliases, praliases, purgestat, sendmail, smrsh and vacation None /etc/mail and /usr/share/doc/sendmail-&sendmail-version; Short Descriptions editmap queries and edits Sendmail map files. editmap hoststat prints Sendmail's persistent host status. hoststat mailstats displays Sendmail statistics. mailstats mailq prints a summary of outbound mail messages waiting for delivery. mailq makemap creates Sendmail map files. makemap newaliases rebuilds /etc/mail/aliases.db from the contents of /etc/mail/aliases. newaliases praliases displays current Sendmail aliases. praliases purgestat causes Sendmail to clear (purge) all its host-status information. purgestat sendmail is the Sendmail mail transport agent. sendmail smrsh is a restricted shell for Sendmail. smrsh vacation is an email auto responder. vacation