#sending email does not work (and it worked before) 
#output from /var/log/mail.info 

May 21 06:40:40 server postfix/smtpd[2745]: NOQUEUE: reject: RCPT from web35902.mai
l.mud.yahoo.com[66.163.179.186]: 554 5.7.1 <tmroland@assa-electronic.ro>: Relay acc
ess denied; from=<tmircearoland@yahoo.com> to=<tmroland@assa-electronic.ro> proto=S
MTP helo=<web35902.mail.mud.yahoo.com>
May 21 06:40:40 server postfix/smtpd[2745]: disconnect from web35902.mail.mud.yahoo
.com[66.163.179.186]



server:/var/log# postconf -n
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
append_dot_mydomain = no
biff = no
config_directory = /etc/postfix
home_mailbox = Maildir/
inet_interfaces = all
mailbox_size_limit = 0
mydestination = mail.assa-electronic.ro, server.local, localhost.local, localhost
myhostname = server.local
mynetworks = 127.0.0.0/8
myorigin = /etc/mailname
recipient_delimiter = +
relayhost =
smtp_tls_session_cache_database = btree:${queue_directory}/smtp_scache
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key
smtpd_tls_session_cache_database = btree:${queue_directory}/smtpd_scache
smtpd_use_tls = yes