550 Error - Outlook 2007 - Only one address domain - Not the ISP

[kenrosenfeld]

When I send email to people at one specific address domain (a company by the
name of "medical-insight.com"), I get a 550 error, specifically:

550 not local host medical-insight.com, not a gateway

I have another PC-based email program that has the same ISP settings, and
can send an email to this address with no issues.

Other emails are sending fine from my Outlook 2007 - so it can't be the
ISP's fault.

Other people have similar issues in this discussion group ... but there
seems to be no answer to the problems posted. Is this a defect in the Outlook
beta?

 

[Patrick Schmid]

Are you running Beta 2 or B2TR?

Patrick Schmid

 

[kenrosenfeld]

I am not positive - I think B2TR since I just downloaded and installed two
days ago.

Is there a way to know for sure? The About box didn't seem to help.

 

[Patrick Schmid]

You downloaded and installed Outlook 2007 Beta 2. Did you install a
patch for it? You'd have known. B2TR would have required you to install
two >400 MB files.
Check my website for B2TR download links.

Patrick Schmid

 

[kenrosenfeld]

thanks Patrick. I thought I was installing the latest version of the Beta. I
am downloading B2TR now. Hopefully that fixes it.

 

[kenrosenfeld]

Patrick -

B2TR loaded - no change in behavoir. Still getting 550 error on some emails,
and some emails are OK.

Performed multiple reboots to confirm - no changes.

Any ideas?

 

[Patrick Schmid]

Are you sure your settings are 100% correct? Check especially
authentication settings (under more settings). That's where I'd assume
your problem is.


Patrick Schmid