building postfix 3.x on slackware and netbsd
Why build from scratch? So we get PCRE, DOVECOT-SASL and LIBSPF2 up and running.
although we are going to use Dovecot’s implementation of SASL, we could not get around this library
pkg_add cyrus-sasl #cd /usr/pkgsrc/security/cyrus-sasl/ #make install ll /usr/pkg/lib/sasl2/ #old ll /usr/pkg/etc/sasl2/ #new #security/cy2-crammd5 #security/cy2-gssapi
also we are going to enable SPF
pkg_add py-policyd-spf #cd /usr/pkgsrc/mail/py-policyd-spf/ #make install
also make sure you’ve got those
grep postfix /etc/passwd grep postfix /etc/group grep maildrop /etc/group
how many cores for make jobs?
dmesg | egrep '] cpu[0-9]+:'
for receiving keys through GPG
slackpkg install nghttp2 brotli cyrus-sasl
for building
slackpkg install guile gc db48 glibc kernel-headers m4 pcre
how many cores for make jobs?
grep ^proc /proc/cpuinfo
grab the latest release from a mirror and the .gpg2 signature. The .gpg1 one is using Wietse old and revoked key (C12BCD99).
ver=3.5.2 #FRANCE #mirror=http://postfix.mirrors.ovh.net #BULGARIA mirror=http://mirror.host.ag/postfix wget $mirror/postfix-release/official/postfix-$ver.tar.gz wget $mirror/postfix-release/official/postfix-$ver.tar.gz.gpg2
you can use GPG v1
gpg --verify postfix-$ver.tar.gz.gpg2 postfix-$ver.tar.gz gpg --recv-keys 80CA15A7 gpg --verify postfix-$ver.tar.gz.gpg2 postfix-$ver.tar.gz
you should have a good signature with this fingerprint
Primary key fingerprint: 622C 7C01 2254 C186 6774 69C5 0C0B 590E 80CA 15A7
extract it and compile with SSL and SASL
tar xzf postfix-$ver.tar.gz cd postfix-$ver/
vi makedefs NetBSD*) SYSTYPE=NETBSD vi src/util/sys_defs.h || defined(NETBSD) \
build postfix
make tidy make makefiles CCARGS="-I/usr/local/include -DHAS_PCRE -DUSE_TLS -DUSE_SASL_AUTH" AUXLIBS="-L/usr/lib64 -L/usr/local/lib -lpcre -lssl -lcrypto" #-DDEF_SERVER_SASL_TYPE=\"dovecot\" time nice make -j2 > ../postfix.log && echo BUILT make install
…eventually accept all the defaults, overriding system’s built-in version
which postfix which postconf postconf -d | grep mail_version
check that you got Dovecot SASL enabled
postconf -a
check configuration
postfix check && echo ok
Postfix Installation From Source Code http://www.postfix.org/INSTALL.html