Re: [cobalt-users] Cube 3 - email problems

[Will DeHaan <null@xxxxxxx>]

Josh Gasber wrote:
> 
> We are using a Cube 3 to handle all of our outbound mail relay and have been
> experiencing the following:
> 
>         Problems sending email with attachments
>                 This is primarily a problem with users on different parts of our wan
> (non-local).  They are experiencing timeouts with their email client on
> outbound email.  These emails only have a 40k attachment.  The wan link from
> the remote to the host side, where the cube is located is a 64k frame relay
> connection over cisco 2600/1600 routers.
> 
> There should be NO issue with volume on the Cube, as only 200-500 messages a
> DAY are being handled by it and there is no other traffic at all directed
> towards it (I know it is being vastly underutilized, maybe if this gets
> resolved somethings will change).
> 
> Any clues about directions to look for a solution or things to check would
> be greatly appreciated.
> 
> Thank You,
> Josh

Mis-matched duplex settings on any connection between Qube and clients
can cause the timeout in sending mail that you're experiencing.

The 56k line configuration is the most likely problem, but if the Qube
is connected to a managed switch, verify you're 100bT full duplex at
both ends.


	-- Will


-- 
Will DeHaan
Software Engineer              will.dehaan@xxxxxxx
Sun Cobalt Server Appliances.  Sun Microsystems, Inc.