On Thu, 3 Dec 2009 08:34:14 -0800, you wrote:
>This is a multi-part message in MIME format. > >------=_NextPart_000_0042_01CA73F3.65840B00 >Content-Type: text/plain; > charset="us-ascii" >Content-Transfer-Encoding: 7bit > <SNIP> >Folks, > >We have a user who can't send mail externally but can send mail locally (to >people within our domain) when using Outlook 2003. But with Thunderbird the >user can send & receive both externally & internally from the same machine. >Naturally if they use any other machine they can send/receive externally >using Outlook 2003. So it's just this one machine and it's Outlook 2003 >that has the issue. > > > >I know it must be a configuration issue but all the settings are correct. I >have tried reinstalling Outllook 2003 even cleaning up the registry before >re-install. I am pretty confident I haven't missed anything to check but >you never know. Has anyone else ever come across a similar issue? > > > >I realise this isn't a PostFix issue, or at least I suspect it isn't, but >you folks must deal with client side e-mail issues as well as mail server >issues so thought I'd poll the list to get some input. I doubt there is >anything unique about our set-up. We have a barracuda spam filter in place >and mail clients are set to use port 587 to send mail using our mail server. > > > > >Linux mail.xxxxxx.com 2.6.27.25-78.2.56.fc9.i686 #1 SMP Thu Jun 18 12:47:50 >EDT 2009 i686 i686 i386 GNU/Linux > >Postfix is mail_version = 2.5.1 > > > >Again if this isn't something I should ask the list please let me know and >accept my apologies for the oversight on my part. Please don't post in HTML. And without logs, or at the very least an error message, anything would be at best a guess. May want to ask in an Exchange group as yes, this has nothing to do with postfix.