Solved

Cannot telnet to IMAP server

Posted on 2010-09-22
4
1,323 Views
Last Modified: 2012-05-10
OK, i am deeply confused:

i have set up an exchange server and enabled all ports on firewall. i am trying to set up remote clients with IMAP, i can set up POP3 but not IMAP. Both POP3 and IMAP are set up with same settings but for some reason if i try the following command on a remote machine:

telnet mail.**********.com 110

it lets me through straight away saying  +OK the microsoft exchange POP3 service is ready.

if i try:

telnet mail.**********.com 143 i get the following (after lots of waiting):

...Could not open connection to the host, on port 143: Connect Failed

i can succefully run both these on the server itself using Localhost instead of FQDN, and i can run both on a local machine using the local name of the server instead of the external name.

I have tried disabling Firewall (both ends), Antivirus, and i have double, triple and quadruple checked the firewall settings to make sure port 143 is open and it is.

it seems there is something blocking it but I have no idea what.
I am using exchange 2010 BTW
please help!
0
Comment
Question by:catomax
  • 2
4 Comments
 
LVL 8

Accepted Solution

by:
Mkris9 earned 500 total points
ID: 33736138
what firewall are you using ? have you checked firewall logs for rejected / blocked requests ?
0
 

Author Comment

by:catomax
ID: 33736193
Hi Mkris,
I am using a Sonicwall TZ 100 series firewall, checked the logs and there is nothing about the attempted connections at all.

0
 

Author Closing Comment

by:catomax
ID: 33886811
Thanks for at least showing an interest in the question, managed to solve it eventually.
0
 

Expert Comment

by:attbrowning
ID: 34201040
I am having the same issue with Exchange 2007.. if you could please relate what your solution was I'd appreciate it.
0

Featured Post

What Security Threats Are You Missing?

Enhance your security with threat intelligence from the web. Get trending threat insights on hackers, exploits, and suspicious IP addresses delivered to your inbox with our free Cyber Daily.

Join & Write a Comment

Exchange server is not supported in any cloud-hosted platform (other than Azure with Azure Premium Storage).
If you don't know how to downgrade, my instructions below should be helpful.
Get people started with the process of using Access VBA to control Outlook using automation, Microsoft Access can control other applications. An example is the ability to programmatically talk to Microsoft Outlook. Using automation, an Access applic…
This Experts Exchange video Micro Tutorial shows how to tell Microsoft Office that a word is NOT spelled correctly. Microsoft Office has a built-in, main dictionary that is shared by Office apps, including Excel, Outlook, PowerPoint, and Word. When …

760 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

23 Experts available now in Live!

Get 1:1 Help Now