5.5.0 no such domain at this location

[b]

Hi,
When folks send email to a user at this business they get the following
message

There was a SMTP communication problem with the recipient's email server.
Please contact your system administrator.
<mail.xx.org #5.5.0 smtp;550 No such domain at this location
(x...@eastersealsma.org)>

thanks

[Susan]

I just looked at dnsreport.com, and see a valid MX record, and it was able
to connect to your email server...is everyone getting this? what's a valid
address there to test?

--
Susan Conkey [MVP]

"b" <b...@discussions.microsoft.com> wrote in message
news:BF716D0B-8A65-417B...@microsoft.com...

[b]

you may send email to br...@cowc.org

[Susan]

but that's not the eastersealsma.org domain...? which email domain is in
question? dnsreport.com reports being unable to connect to the mail server
for cowc.org - here's the error:

ERROR: I could not complete a connection to any of your mailservers!

mx.cowc.org: Timed out [Last data sent: RCPT TO: ]

If this is a timeout problem, note that the DNSreport only waits about 40
seconds for responses, so your mail *may* work fine in this case but you
will need to use testing tools specifically designed for such situations to
be certain.

--
Susan Conkey [MVP]

"b" <b...@discussions.microsoft.com> wrote in message

news:109460F1-3956-4A0B...@microsoft.com...

[b]

So far two users when they sent email to this domain have received the NDR,
but when you try to send the NDR again it works.

"b" wrote:

> > > (xxintermittent DNS issue.
)>
> > >
> > > thanks
> >
> >
> >

[Susan]

when I try to send via a telnet session, I get disconnected from the smtp
server...

--
Susan Conkey [MVP]

"b" <b...@discussions.microsoft.com> wrote in message

news:9E84A68A-05DD-4651...@microsoft.com...

[Susan]

but the test I sent from Outlook seems to have been delivered...

--
Susan Conkey [MVP]

"b" <b...@discussions.microsoft.com> wrote in message

news:9E84A68A-05DD-4651...@microsoft.com...

[b]

Yes cowc.org is our domain, and when two of our users so far try when tried
to send email to x...@eastersealsma.org) we get the NDR back, when I tried to
resend the message from the NDR it worked. I don't know if it is an inter

[Susan]

I would try sending and email to the people at eastersealsma.org via a
telnet session to see if you get any help, there...

--
Susan Conkey [MVP]

"b" <b...@discussions.microsoft.com> wrote in message

news:CA0E51A4-2466-45E4...@microsoft.com...

[Susan]

I just tried a test via telnet to a phony address at eastersealsma.org and
got all the way to the point where I got a "user unknown"...

--
Susan Conkey [MVP]

"Susan" <sco...@mgmmirage.nospam.com> wrote in message
news:ub35es1E...@TK2MSFTNGP06.phx.gbl...

[b]

I got a 220 but I did not get a 250

[Susan]

since I can connect and send a message via telnet to the eastersealsma.org
server, and am having a problem doing that with your server, I would suspect
the connectivity issue might be on your side...

--
Susan Conkey [MVP]

"b" <b...@discussions.microsoft.com> wrote in message

news:4C69CA46-F457-4768...@microsoft.com...

[b]

What problem did you have with ours?
Maybe there is a miss config on the mx which one did you use

[Susan]

I used the only one I saw on dnsreport.com...69.95.215.210

--
Susan Conkey [MVP]

"b" <b...@discussions.microsoft.com> wrote in message

news:47A78697-803D-435E...@microsoft.com...

[b]

Did you try the Ip or the name?

[John]

I tried it (telnet 69.95.215.210 25).

Here's what I got:

220 ***********************************************************
helo mydomain.com
500 Syntax error, command unrecognized
ehlo mydomain.com
500 Syntax error, command unrecognized

Your SMTP doesn't recognize helo or ehlo.

"b" <b...@discussions.microsoft.com> wrote in message

news:AD71C616-7FD7-4AE1...@microsoft.com...

[b]

I had somebody try it with the mx name it did not create a problem. Any
thoughts

[Susan]

the IP address...

--
Susan Conkey [MVP]

"b" <b...@discussions.microsoft.com> wrote in message

news:AD71C616-7FD7-4AE1...@microsoft.com...

[Susan]

that's what I got once, too...first time, I just got "host disconnected"...

--
Susan Conkey [MVP]

"John" <a> wrote in message news:ufUhoQ3E...@TK2MSFTNGP05.phx.gbl...

[b]

Your recommendations related to the issue?

[Susan]

What is this device with this IP address? a server? what's on it? is it
your Exchange server, or a smart host, or what? I would say there's some
kind of connectivity issue on it...

--
Susan Conkey [MVP]

"b" <b...@discussions.microsoft.com> wrote in message

news:51D2D4E9-9206-4521...@microsoft.com...

[b]

that's our mx address and assigned internally to the spam blocker. So the
mail goes through it. We have a server that has exchange installed. there is
no smart host.

[John]

Are you sure that person telnet to mx.cowc.org instead of cowc.org?

If you telnet to mx.cowc.org or the IP that's assign to it, you'll get the
same result. But if you telnet to cowc.org on (also on port 25), you'll get
a good response.

Something behind that IP (69.95.215.210) isn't configured properly to handle
mail traffic.

"b" <b...@discussions.microsoft.com> wrote in message

news:8CCA91B5-9776-4837...@microsoft.com...

[Susan]

what is the spam blocker? it appears it's not allowing certain
connections...
--
Susan Conkey [MVP]

"b" <b...@discussions.microsoft.com> wrote in message

news:02499EDD-5520-49AA...@microsoft.com...

[b]

it is a barracuda device, however we do not filter outbound mail only
incoming. And incoming mail comes fine even from the domain
(eastersealsma.org) the one in question.

[Susan]

but when dnsreport tries to connect to your mail server, it fails...and when
I try to, via telnet, it fails...something is clearly not as it should be...

--
Susan Conkey [MVP]

"b" <b...@discussions.microsoft.com> wrote in message

news:97B23A27-DE19-4954...@microsoft.com...