After more than one month of outage caused mostly by the lack of spare time, I restored e‑mail services, DNS and web services. Other services are still in my job queue.
For e‑mail services back-end I choose Postfix as MTA, Dovecot as IMAP server, SpamAssassin as the junk mail filter, ClamAV and AMaViS as virus scanners and Horde as excellent web front-end.
Current hardware is generic Intel® Pentium® 4 CPU 2.40 GHz with 768 MB dual channel SDRAM and big enough PATA-RAID5.
Final destination of the server is Casablanca INT housing centre, gracefully provided by SuperNetwork s.r.o..
Please feel free to contact me, if you encounter any problems.