enabling port 143

jay_gonzales · 02-27-2004, 03:55 PM

Please help, I instaled a postfix server with imao support,i check on the logs and it seem to work fine,but when i try to connect via Outlook Express its connection timeout. I tried to telnet port 143 and i get a connection refused message.

How do I enable this port 143 to connect to my telnet......?? Please help.....

trickykid · 02-27-2004, 03:59 PM

Well is imapd running? If you don't have a firewall it will open once imapd is running and listening on port 143..

jay_gonzales · 02-28-2004, 12:48 AM

I started the imap service and i checked it if its running it is.....

when i telnet from the box $telnet 127.0.0.1 143 the message it prompted was
* OK [CAPABILITY IMAP4rev1 UIDPLUS CHILDREN NAMESPACE THREAD=ORDEREDSUBJECT THREAD=REFERENCES SORT QUOTA IDLE ACL ACL2=UNION STARTTLS] Courier-IMAP ready. Copyright 1998-2004 Double Precision, Inc. See COPYING for distribution information.

but when i tried to telnet outside it didn't respond, thats why perhaps i still couldn't contact my Mail Server...using my outlook express....

What could be the possible error why i cant connect via IMAP... plz help thanks

andrewlkho · 02-28-2004, 07:52 AM

What is the result when you do an:
nmap <imap_servername>
from an external computer?

jay_gonzales · 02-29-2004, 07:52 PM

Her was the result of my nmap query ? still i cant telnet it from a remote
host

22/tcp open ssh
25/tcp open smtp
110/tcp open pop3
111/tcp open rpcbind
143/tcp open imap
1024/tcp open kdm

trickykid · 02-29-2004, 08:06 PM

Are you getting that result from an external computer on your network? Are you behind some kind of firewall or router, etc?

jay_gonzales · 02-29-2004, 08:28 PM

I nmap it from the same machine... but when i tried to nmap it from a remote host i could not see the POP and IMAP port open. I've started the service already . is there as way on how i could debug this error? I could able to send and receive my mail on the MailDir but i could not get it from my Outlook Express because of this port not open. Thanks

andrewlkho · 03-01-2004, 03:53 AM

What's in between your linux server and the computer you're portscanning from? [ie firewalll, router, switch &c]

jay_gonzales · 03-01-2004, 04:13 AM

a switch only

andrewlkho · 03-01-2004, 04:34 AM

What iptables / ipchains rules have you set? Do you have any firewall of sorts on the ssh server?

jay_gonzales · 03-01-2004, 04:39 AM

i just installed a red hat linux 7.1 and i never installed any kind of firewall in the box.