Please help with postfix -- local mail

[ah@siol.net (andrej hocevar)]

I've just migrated from masqmail to postfix and it's working fine as
far as I can tell, the only exception being local delivery. I can
send mail to myself but not to any other computer on a small home
LAN, consisting of three alltogether. 
I obviously can't handle the transports file.

Here's my configuration:

program_directory = /usr/lib/postfix
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
mydestination = sonet, localhost.localdomain
mailbox_command =
mailbox_size_limit = 0
recipient_delimiter = +
##########
myorigin = siol.net
myhostname = sonet.utopija.linux
mydomain = utopija.linux
relayhost = smtp.volja.net
canonical_maps = hash:/etc/postfix/sender_canonical
transport_maps = hash:/etc/postfix/local_transport
mynetworks = 127.0.0.0
disable_dns_lookups = yes
_____________________________________

.utopija.linux  local:
_____________________________________
-- 
echo ${girl_name} > /etc/dumpdates


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