Please review my Postfix config

I have 10 users on my Linode VPS and I want to give them the ability to send/receive mail with encryption (client->postfix , postfix -> remote mail server, pop3s). Pop3 part is ok with Dovecot.

Can you please review my main.cf and master.conf ? Did I miss something ? Any other advice (expacially on TLS SSL section)?

main.cf

myhostname = myhostname.com
mydestination = myhostname.com, hal.myhostname.com, localhost.myhostname.com, localhost
mynetworks = 127.0.0.0/8
message_size_limit = 10240000
inet_interfaces = all

biff = no
append_dot_mydomain = no
readme_directory = no

alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
recipient_delimiter = +

home_mailbox = $HOME/Maildir/

virtual_alias_maps = hash:/etc/postfix/virtual

# ------ SASL -----
smtpd_sasl_authenticated_header = yes
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth
broken_sasl_auth_clients = yes
smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination

# ------ TLS -------
smtp_tls_security_level = may
smtpd_tls_security_level = may
smtpd_tls_auth_only = yes
smtpd_tls_received_header = yes
smtpd_tls_cert_file = /etc/ssl/postfix.pem
smtpd_tls_key_file = /etc/ssl/postfix.key
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache

master.cf

smtp      inet  n       -       -       -       -       smtpd
#submission inet n       -       -       -       -       smtpd
#  -o smtpd_tls_security_level=encrypt
#  -o smtpd_sasl_auth_enable=yes
#  -o smtpd_client_restrictions=permit_sasl_authenticated,reject
#  -o milter_macro_daemon_name=ORIGINATING
smtps     inet  n       -       -       -       -       smtpd
  -o smtpd_tls_wrappermode=yes
  -o smtpd_sasl_auth_enable=yes
  -o smtpd_client_restrictions=permit_sasl_authenticated,reject
  -o milter_macro_daemon_name=ORIGINATING
#628      inet  n       -       -       -       -       qmqpd
pickup    fifo  n       -       -       60      1       pickup
cleanup   unix  n       -       -       -       0       cleanup
qmgr      fifo  n       -       n       300     1       qmgr
#qmgr     fifo  n       -       -       300     1       oqmgr
tlsmgr    unix  -       -       -       1000?   1       tlsmgr
rewrite   unix  -       -       -       -       -       trivial-rewrite
bounce    unix  -       -       -       -       0       bounce
defer     unix  -       -       -       -       0       bounce
trace     unix  -       -       -       -       0       bounce
verify    unix  -       -       -       -       1       verify
flush     unix  n       -       -       1000?   0       flush
proxymap  unix  -       -       n       -       -       proxymap
proxywrite unix -       -       n       -       1       proxymap
smtp      unix  -       -       -       -       -       smtp
# When relaying mail as backup MX, disable fallback_relay to avoid MX loops
relay     unix  -       -       -       -       -       smtp
        -o smtp_fallback_relay=
#       -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
showq     unix  n       -       -       -       -       showq
error     unix  -       -       -       -       -       error
retry     unix  -       -       -       -       -       error
discard   unix  -       -       -       -       -       discard
local     unix  -       n       n       -       -       local
virtual   unix  -       n       n       -       -       virtual
lmtp      unix  -       -       -       -       -       lmtp
anvil     unix  -       -       -       -       1       anvil
scache    unix  -       -       -       -       1       scache