Re: How to turn on iMAP for the iPhone


Port 25 is for SMTP and has nothing to do with IMAP, although your external
IMAP client will need to connect on port 25 in order to send emails. IMAP
is only used for reading email, you see. You will need to be able to telnet
externally on port 143 before you can use an IMAP client outside the LAN.
If it works internally, then there is no more that you can do at the server
end - it's all down to your ISP and your firewall setup.

"Chris" <Chris@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:8A6E8E51-739E-4AE2-92AF-B7AE00C5C686@xxxxxxxxxxxxxxxx
Lee

Thanks for the update

We worked on this yesterday with cBeyond, our ISP
They are using NAT and Port 143 is closed by default
They tried forwarding the port to both the public and internal IP
addresses
on the server but we could not telnet to either of them

Telnet works internally to 143 and externally to 25

We also checked the settings on the IMAP protocol, the IP on the virtual
server is set to the public IP

Thanks
Chris


"Lee Derbyshire [MVP]" wrote:

"Chris" <Chris@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:3702193D-949D-49F7-91CF-F5CCE1409EC8@xxxxxxxxxxxxxxxx


"Lee Derbyshire [MVP]" wrote:

<jonsteinberg@xxxxxxxxx> wrote in message
news:1183502321.913913.248230@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
On Jun 29, 9:14 am, "Lee Derbyshire [MVP]" <email a@t leederbyshire
d.
0.t c.0.m> wrote:
"Exchange User" <exchange_u...@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in
message

news:9hk983p5n1nj5l8gm6062pmrtkmcsh3gs0@xxxxxxxxxxxxxxxxxxxxx

David Pogue'siPhoneFAQ states theiPhoneworks with corporate
Exchange
e-mail systems if the administrator turns oniMap. So I want to
turn
on
iMap
to support theiPhone. How do iturn oniMapwith Exchange 2003
Server?
I
thanks you.

IMAPis already enabled on Exchange 2003. From a PC on your
network,
try
this from a command prompt:

telnet yourservername 143

If you see anIMAPbanner message displayed, then the server is ready
and
listening. Just close the CMD prompt when you've finished.

Lee.

--
______________________________________

OutlookWebAccessFor PDA , OWA For WAPwww.leederbyshire.com
email a@t leederbyshire d.0.t c.0.m
______________________________________

I ran this step and it came up showing imap running. My firm also
makes OWA available. However when I try and access using imap or
exchange setting on my iphone it cant find the server. Any ideas?

Do you have access to the firewall settings? You need to make sure
that
port 143 traffic is being forwarded to the Exchange server. You tried
the
telnet test from the LAN, I assume? The next step is to try it from
the
Internet.

Lee.

Lee

What do you mean by "make sure that port 143 traffic is being forwarded
to
the Exchange Server" exactly. Are you talking about just opening the
port
in
the router/firewall or something else ?

The iphone documentation says to connect to imap.domainname.com or
whatever,
what about a DNS entry for imap ?
Thanks
Chris

Yes, the port must must be open at the firewall, but if you are using
NAT,
then you will also need to tell it where to send the incoming traffic.

It shouldn't be necessary to create a special DNS entry just for IMAP. I
would just use an existing one, like mail.domain.com - or even just the
public IP address.

Lee.

--
______________________________________

Outlook Web Access For PDA , OWA For WAP
www.leederbyshire.com
email a@t leederbyshire d.0.t c.0.m
______________________________________





.

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