Re: [SM-USERS] imapproxy with gmail

[Paul L. <pa...@sq...>]

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On Thu, Dec 9, 2010 at 12:41 PM, Jumping Mouse <ka...@ho...> wrote:
>
> > Subject: Re: [SM-USERS] imapproxy with gmail
> >
> > On Thu, Dec 9, 2010 at 10:14 AM, Jumping Mouse <ka...@ho...> wrote:
> > >>
> > >> On Wed, Dec 8, 2010 at 3:30 PM, Jumping Mouse <ka...@ho...> wrote:
> > >> > Hi everyone,
> > >> > I am able to get squirrelmail to work with gmail without imapproxy.   I
> > >> > have
> > >> > enabled imapproxy on my machine and set squirremail to connect to
> > >> > localhost
> > >> > port 144
> > >> > I get the following error in squirrelmail:
> > >> > Error connecting to IMAP server: 127.0.0.1.
> > >> > 111 : Connection refused
> > >> > can anyone help with this.. I am having a hard time finding any
> > >> > documentation.
> > >>
> > >> So IMAP Proxy didn't start up. For questions about IMAP Proxy, please
> > >> use the squirrelmail-imapproxy mailing list. But, since you already
> > >> started an off-topic thread here... Read your log files for hints.
> > >> The biggest hint will be to read the IMAP Proxy README.ssl file --
> > >> compare it to your configuration settings and/or download and use the
> > >> latest snapshot of IMAP Proxy version 1.2.8 from the downloads page.
> > >> It will give you some more helpful messages when you try to start it
> > >> with these settings.
> > >>
> > >> > Here is my imapproxy.conf file:
> > >> > ## imapproxy.conf
> > >> > ##
> > >> > ## This is the global configuration file for imapproxy.
> > >> > ## Lines beginning with a '#' sign are treated as comments and will be
> > >> > ## ignored.  Each line to be processed must be a space delimited
> > >> > ## keyword/value pair.
> > >> > ##
> > >> > #
> > >> > ## server_hostname
> > >> > ##
> > >> > ## This setting controls which imap server we proxy our connections to.
> > >> > #
> > >> > server_hostname imap.gmail.com
> > >> >
> > >> > #
> > >> > ## cache_size
> > >> > ##
> > >> > ## This setting determines how many in-core imap connection structures
> > >> > ## will be allocated.  As such, it determines not only how many cached
> > >> > ## connections will be allowed, but really the total number of
> > >> > simultaneous
> > >> > ## connections, cached and active.
> > >> > #
> > >> > cache_size 3072
> > >> >
> > >> > #
> > >> > ## listen_port
> > >> > ##
> > >> > ## This setting specifies which port the proxy server will bind to and
> > >> > ## accept incoming connections from.
> > >> > #
> > >> > listen_port 144
> > >> > #
> > >> > ## listen_address
> > >> > ##
> > >> > ## This setting specifies which address the proxy server will bind to
> > >> > and
> > >> > ## accept incoming connections to.  If undefined, bind to all.
> > >> > ## Must be a dotted decimal IP address.
> > >> > #
> > >> > listen_address
> > >> > #
> > >> > ## server_port
> > >> > ##
> > >> > ## This setting specifies the port that server_hostname is listening on.
> > >> > ## This is the tcp port that we proxy inbound connections to.
> > >> > #
> > >> > server_port 993
> > >>
> > >> IMAP Proxy only does STARTTLS from a normal IMAP connection. Please
> > >> read its documentation for more information.
> > >
> > >
> > > Thanks Paul,  I read the documentation and it looks like imapproxy does not
> > > support   port 993 SSL connections (IMAPS)  only  STARTTLS on port 143.   So
> > > that would mean it will not work with GMAIL IMAP.
> >
> > No, that's incorrect. For proof, telnet to imap.gmail.com port 143
> > and type "A CAPABILITY". IMAP Proxy *does* work with Gmail.
> >
>
> Paul  when I telnet imap.gmail.com 143  I do not get any connection:
> #telnet imap.gmail.com 143
> Connecting To imap.gmail.com...Could not open connection to the host, on port 143: Connect failed
> I have tried this from two locations behind different firewalls and no luck on both.  I tested another
> imap server and I was able to connect.  This is what I based my conclusion that gmail Imap does
> not support STARTTLS.

That is faulty logic.  "I cannot connect to a service" does not equate
to "some feature of that service is not supported."

>From my location:

$ telnet imap.gmail.com 143
Trying 74.125.127.109...
Connected to imap.gmail.com (74.125.127.109).
Escape character is '^]'.
* OK Gimap ready for requests from ww.xx.yy.zz n14if21260b3fal.5
A CAPABILITY
* CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA XLIST CHILDREN
XYZZY SASL-IR AUTH=XOAUTH STARTTLS
A OK Thats all she wrote! n14if21260b3fal.5

There it is.  As to whether or not their STARTTLS feature actually
works, that's anyone's guess, since Google is famously unresponsive to
help requests and provides little to no documentation of such
services.

>  Gmail seems to only support STARTTLS on its SMTP connection.
> see also here from gmail help forums:
> Top Contributor
> 2/15/10
> No, they do not.  They only support STARTTLS for SMTP, and, I think, XMPP.  It is not supported
> for POP3 or IMAP.

--
Paul Lesniewski
SquirrelMail Team
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