I've a problem with sendmail 8.13.8 on centos5 .

My server allow relay from external network to local username address .

example :

[rootATexternal network]# telnet mymailserver 25
Trying mymailserver...
Connected to mymailserver.
Escape character is '^]'.
220 mymailserver ESMTP Sendmail ; Sat, 5 Jun 2010 11:09:52 +0200
mail from:userATmymailserver
250 2.1.0 userATmymailserver... Sender ok
rcpt to:user mymailserver
250 2.1.5 userATmymailserver... Recipient ok

the file /etc/mail/access contain only local address :

Connect:localhost.localdomain RELAY
Connect:localhost RELAY
Connect: RELAY

But I can send email from external network to local user .

Where is the problem ?