small business server email issue

Hi All,

I have a slight issue with SBS2003 the domain for example has employees
inhouse and offsite.

the offsite employees i setup emails with the isp host

the inhouse has a catchall with all remaining domain mail.

My problem is the outside users get mail fine if its sent to them by 3rd partys , they can also send mail out to 3rd partys and also to others within the domain fine.

the issue is with people in the office they cannot sent mail to the external staff as the sbs server assumes the users are all in the domain (office) and will not forward the mail to external connector.

How can i force the mail for some users@domain to be sent to the external smtp for sending out?

Thanks all
Who is Participating?
Sanjay SantokiCommented:

There is only workaround to download emails on exchange server. Your external staff will get emails from your exchange server using with POP or RPC over HTTP.

Also, I would like you to wait for some other comments as they might have some solutions.

Sanjay Santoki
Viral RathodConsultantCommented:
Is people in the office gets NDR when they send e-mails to your office outside users ?
Are you using SMRThost to deliver e-mails to external world OR DNS is configured to send the e-mails outside ?
Cliff GaliherCommented:
What you describe is a common issue with your type of topology. For many reasons, your current setup is not at all ideal. Some of the many reasons include troubleshooting overhead, need to manage multiple usernames and passwords per user, a lack of a unified backup strategy (not all mail is on-site, but not all is with the ISP), a lack of an enforcable archiving policy, lack of an enforcable privacy policy, security concerns (ability to quickly and easily disable email access for a dismissed employee, for example), and the list goes on. IF *all* email is with a hosted company, that usually works. If all is with you, that works as well, but splitting it...RARELY a good idea.

So, my first recommendation is to consolidate. Set up Exchange mailboxes for your remote users, enable Outlook Anywhere for email access, and OWA if desirable. IMAP for users who don't want to use Outlook or the web interface if that fits in your security strategy. Regardless, you can easily grant remote users easy mail access and consolidate your mail.

If you *absolutely must* run mail split between two servers, you are running what is called a disjoint namespace, and Exchange *can* support this with some settings changes (again difficult t set up and difficult to troubleshoot) so here is the MS technet article on setting such a beast up.

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