In ALT Linux we build exim with many "flavors" (feature sets) ranging from light version with as little dependancies as possible to exim-heavy that contains all supported features (and requires many external libraries). exim-common - is a package with common parts of exim installation (configs, init-scripts, some common utils). exim - is a virtual package with exim-common and exim-light dependencies. We provide range of packages built with support for different lookup methods: exim-light - minimalistic package built without external database lookups (but with sqlite included). All other useful features (perl support, SPF, SRS, Domainkeys) included. Ideal for those who do not use DBMS/LDAP lookups in exim configuration. exim-mysql - exim-light + support for MySQL lookups exim-pgsql - exim-light + support for PostgreSQL lookups exim-ldap - exim-light + support for LDAP lookups exim-heavy - exim-light + all of those lookups + whoson support exim-*-doc - packages with docs (html, pdf, postscript formats) exim-info - package with Info documentation exim-utils - some utils for exim maintenance Default exim configuration uses textual file of aliases in /etc/exim/aliases. DBM file aliases.db is built from it by /usr/bin/exim_aliases.