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Exchange 2007 will not receive emails from outside world

Posted on 2009-07-12
Medium Priority
Last Modified: 2012-05-07
For the past 3 days I have been trying to get Exchange 2007 to receive email from outside sources with no luck.  Most people will not post their domain names and ip addresses but I need to get this done and its driving me crazy.

internal domain name is Compmia.local
internal domain controller name is srvw2k8.compmia.local
exchange server name is srvw2k8exch.compmia.local

I have a sonicwall 2040 pro
added nat and opened ports for mail.

my website address is compmia.com
subdomain for mail is mail.compmia.com
modem static ip address is

Compmia.com (mx record) points to mail.compmia.com
Mail.compmia.com (a record) points to which is my modem static ip address.
Mail.compmia.com (mx record) points to mx01.1and1.com which is my domain host.

I don't know which to make the trusted domain, compmia.local or compmia.com
my user are created with their email at .local, i know how to change it in the policy to .com but which do I use.

I created the connectors to us anonymous

does my isp have to do anything else for this to work or do I only need the changes i made from my domain host.

dns settings on my domain controller, I can really use some help on that.

I dont know why I cant receive email, Ive tried many things for the last 3 days, any help is appreciated, thanks.
Question by:bbrunet
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LVL 76

Expert Comment

by:Alan Hardisty
ID: 24836052
Telnetting to the IP you list on port 25 does not come back with your mail server!
Is you server configured to use port 25?
Are all your services started?
LVL 65

Expert Comment

ID: 24836055
Is this SBS or the full product?
If it is the full product, then go through this Exchange team article:

If it is SBS, then ensure that you have completed the wizards.

The most common problem is not enabling anonymous on the Receive Connector.

If I telnet to mail.compmia.com on port 25, the ehlo doesn't look correct.

It should look like this:

220 server.example.co.uk Microsoft ESMTP MAIL Service ready at Sun, 12 Jul 2009 23
:10:41 +0100
250-host.example.co.uk Hello []

it actually looks like this:

220 mail.compmia.com Microsoft ESMTP MAIL Service ready at Sun, 12 Jul 2009 18:0
5:29 -0400
250-mail.compmia.com Hello []
250-SIZE 10485760

That could be a sign of interference somewhere - the firewall maybe.
LVL 76

Expert Comment

by:Alan Hardisty
ID: 24836140
Simon, I know you are good, but you must have special powers - I get absolutely zip when telnetting on port 25!
Nothing ever in the clear!

This technical paper will help you implement VMware’s VM encryption as well as implement Veeam encryption which together will achieve the nothing ever in the clear goal. If a bad guy steals VMs, backups or traffic they get nothing.


Author Comment

ID: 24836326
This is the full product, exchange 2007 enterprise with server 2008 enterprise.

guys this is what I have

 in receive connector

general tab
fqdn this connector will provide, mail.compmia.com

network tab, local ip addresses, all available ipv4 addresses port 25
receive mail from remote servers that have these ip addresses:

authentication tab, I have checked off, transport layer security, enable domain security, basic authentication.

permission groups tab, i have all checked except partners.

hub transport, Accepted domains tab, i have two domains compmia.com(true) and compmia.local(false)

In send connector this is what I have.
general tab, fqdn this connector will provide in response to helo or ehlo, mail.compmia.com

address space tab, smtp * cost 1

Network tab,  checked off use dns "mx" records to route mail automatically.

source server tab, my mail server name which is srvw2k8exch
LVL 71

Expert Comment

by:Chris Dent
ID: 24837941

Can we send to "Administrator@"? Assuming not since I get unable to relay for that particular address.

LVL 76

Expert Comment

by:Alan Hardisty
ID: 24838055
This are the replies that I get:
administrator@compmia.com on 13/07/2009 10:02
            You do not have permission to send to this recipient.  For assistance, contact your system administrator.
            <mail.mymailserver.co.uk #5.7.1 smtp;550 5.7.1 Unable to relay>
postmaster@compmia.com on 13/07/2009 10:04
            You do not have permission to send to this recipient.  For assistance, contact your system administrator.
            <mail.mymailserver.co.uk #5.7.1 smtp;550 5.7.1 Unable to relay>
LVL 71

Accepted Solution

Chris Dent earned 1000 total points
ID: 24838059

Which may indicate a problem with the "Accepted Domains", but we should try it with a valid recipient first (if neither of those are) :)

LVL 76

Assisted Solution

by:Alan Hardisty
Alan Hardisty earned 1000 total points
ID: 24838065
It's no use having your local users with .local email addresses as when they send out - they will send out as .local which will never find it's way back to you.
Set the default email address to .com and trust this domain.

Author Comment

ID: 24856315
chris-dent had the correct idea, I hade my accepted domain, when first setup with a typo error.  Unless of having compmia.com on both places I had put compia.com and I did not see the typo error.  Thanks for all of your help guys.  Yes its embarrassing.

Author Comment

ID: 24856321
alanhardisty also had it correct and pointed me in the correct direction with email addresses had to be with .com and not .local. thanks.

Author Comment

ID: 24856328
I want to give chris and alan 250 each I dont know how to do it, can someone correct this, thanks.

Author Closing Comment

ID: 31602633
Thanks a lot guys.

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