Re: Mail bounces back from Exchange ONLY

We are on a static IP and dnstuff.com seems to come up clean. I checked our
IP from Verizon and our domain IP and name and they all come up clean.

If I log onto our webmail at our HSP, I am able to send mail from there
without any problems. None of the users within the LAN (which go through
Exchange) can send mail to the mercercolor.com domain. At this point, that
seems to be the only domain we can't send mail to.


"Joe" <joe@xxxxxxxxxxxxxx> wrote in message
news:%23BXzxW%23nIHA.4292@xxxxxxxxxxxxxxxxxxxxxxx
PghOPS wrote:
Yesterday, we started getting NDR's for an email address that we have
emailed many times in the past without any problems.

The error is:

You do not have permission to send to this recipient. For assistance,
contact your system administrator.
<funddrive.com #5.7.1 smtp;550 5.7.1 Access denied>

I have Macs that also send mail to the same user, but their email goes to
our ISP directly and not through our Exchange server and their email goes
through OK.

It is only the users that are sending through our Exchange server that
are having a problem with this particular domain (mercercolor.com).

We are using SBS2003r2 Standard.

Sorry if this sould have been posted in the Exchange group. Let me know
if I should post it there.

No, we do Exchange as well. You need them if you have a complicated setup,
on something other than SBS.

Are you on a dynamic IP address? If so, it's possible that you've
inherited one recently used by a spammer and now on a blacklist somewhere.
Not all that likely, as most dynamic ranges are entirely on blacklists.

Something has changed, and if you haven't changed anything, it might be
quickest to ask their IT department what they've done. They may have
changed mail hosts or otherwise altered their method of reception.

The alternative is to enable full SMTP logging, and look at the actual
message being returned by their server, which may offer more information
than Exchange is giving you. If their mail is hosted by a large ISP,
someone here may know which particular hoops you have to jump through to
please them. If it's Yahoo, give up now and buy carrier pigeons.


.

Relevant Pages

  • Re: Mail bounces back from Exchange ONLY
    ... I have Macs that also send mail to the same user, but their email goes to our ISP directly and not through our Exchange server and their email goes through OK. ... as most dynamic ranges are entirely on blacklists. ...
    (microsoft.public.windows.server.sbs)
  • RE: Exchange Message Queues
    ... Please Clean up the Exchange Server's SMTP queues according to the ... Block Open SMTP Relaying and Clean Up Exchange Server SMTP ...
    (microsoft.public.windows.server.sbs)
  • Re: Exchange services wont start on clean SBS 2003 install
    ... I have found several people in exchange and sbs groups ... using nothing but the wizards on a clean format. ...
    (microsoft.public.windows.server.sbs)
  • Re: Exchange 2003 (2 Sites into 1)
    ... is there any real documentation to make sure the order is done ... Forces the users to clean up a bit and takes ... >> a company awhile back who has a stand-alone Exchange 2003 environment. ...
    (microsoft.public.exchange.setup)
  • Re: AD all screwed up
    ... or can I work with MS to clean this up during business hours? ... "Jorge Silva" wrote: ... only after that I would add the new server transfer the FSMO roles, DNs, ... be aware that with Exchange you need a GC ...
    (microsoft.public.windows.server.active_directory)