[Dovecot] [newbie question]to receive mail

[neo anderson]

hi,
i'm newbie to dovecot. lately i install postfix on a
server for providing mail service. however, i
encounter a problem in receiving mail, i.e., to get
mail download to the remote client. (i'm able to send
mail through mozilla client, but can't get the sent
mail download to the client).
what reasons may cause such problem? 
check several points that i suppose it may have
problem, yet can't figure out where the problem may be
resulted from. for instance, 
========== telnet beg
telnet target-server-ip 143
...
* OK dovecot ready.


telnet target-server-ip 25
...
220 host-name.domain.com ESMTP Postfix
(ehlo localhost) <---------- hidden command i enter
250-host-name.domain.com
250-PIPELINING
250-SIZE 20971520
250-VRFY
250-ETRN
250-AUTH LOGIN GSSAPI DIGEST-MD5 CRAM-MD5 PLAIN
250-AUTH=LOGIN GSSAPI DIGEST-MD5 CRAM-MD5 PLAIN
250 8BITMIME
(quit) <---------- hidden command i enter
221 Bye

telnet target-server-ip 110
....
+OK dovecot ready
========== telnet end
btw, i'm able to read and write mail through mail
program in the target server; simply can't get the
mail downloaded to the other client with mozilla mail
client (out look also doesn't work).
mozilla mail client is version 1.7 .
target server using centos 4.0.
postfix 2.1.5
dovecot-0.99.11-2.EL4.1
i appreciate any help, sincerely.


		
___________________________________________________________ 
How much free photo storage do you get? Store your holiday 
snaps for FREE with Yahoo! Photos http://uk.photos.yahoo.com