0
votes
1answer
83 views

Reverse DNS to match Sophos name, or mail server name

I think this is a simple question with a simple answer. Our domain, cory.co.uk, reports a DNS mismatch when you do and SMTP test on mxtoolbox.com. I think this is causing issues sending to some ...
1
vote
2answers
120 views

MS Exchange does not deliver E-mails - DNS Recursion

I have the following problem. I have setup an MS Exchange 2010 server. Mail delivery works fine. But as soon as I disable recursion on my MS DNS server (same host) all the Mails stuck in a ...
0
votes
1answer
59 views

Reverse dns and SaaS Spam Filters

We have an exchange server in the office that for a year or so has just used the built-in spam filters - we have added the SpamHaus IP addresses so that some basic spam filtering is done. However, ...
1
vote
0answers
45 views

Exchange 2007 to Exchange 2010 Migration - Message flow problems

I've tried to migrate an exchange server 2007 to the newer 2010 on another server. I have installed the 2010 roles one after another (CAS -> Hub Transport -> Mailbox). After installing each of these ...
0
votes
1answer
2k views

Exchange 2010 Autodiscover DNS configuration

I'm unable to get the Autodiscover of Exchange 2010 working. Our email accounts are name@company .com and our AD is company .local When I open Outlook 2010 and Ctrl + RMK on the icon and select ...
0
votes
1answer
88 views

Teamed Network card on exchange - outlook not connecting

I have teamed the 4 NIC to a static IP and restarted our Exchange 2010 server running windows 2008 R2. Now Outlook will not connect to Exchange it is showing Disconnected.
1
vote
2answers
10k views

Configuring DNS & MX records for exchange 2010

i am trying to configure Exchange Server 2010 on Windows Server 2008 R2 to receive emails from the internet following the danscourses tutorials: and i followed this video for the DNS & MX ...
2
votes
1answer
138 views

Creating child.domain.local in same network as domain.local

I'm running Windows 2008 r2. I'm curious about creating a new domain in a new forest on a separate install as child.domain.local. The issue is domain.local currently already exists in this network ...
2
votes
1answer
305 views

Dynamic DNS - Windows Server trying to update unwanted A records to BIND zone master

I have a Windows Server 2008R2 Active Directory and Exchange 2010 server (client access, hub transport and mailbox roles) in a primarily Linux server environment. A Linux server running BIND9 is ...
1
vote
2answers
1k views

Setup Exchange 2010 cannot verify Host (A) record warning

When I try to install Exchange 2010 on my server 2008 R2 server I get a warning during the prerequisites check: Warning: setup cannot verify that the 'Host' (A) record for this computer exists within ...
3
votes
1answer
1k views

Exchange 2010 Internal Auto Discover Migrate away from current .local DNS name

We have an Exchange 2010 Server, running within our Active Directory domain, with an internal hostname of server.example.local. The server is configured for Exchange anywhere, but currently has a ...
0
votes
3answers
170 views

MX record for secondary server the same as primary?

I'm preparing a move from our online provider e-mail to our own cloud hosted Microsoft Exchange Server. I'm looking at our current DNS records in the provider config panel regarding email: MX [10], ...
0
votes
1answer
333 views

2 MX dns round robin for with same domain name for Exchange 2010

I have an Exchange 2010 server that is visible under 2 MX records mx.acme.com and mx1.acme.com with 2 different IP addreses from 2 different network providers. They both report as mx.acme.com when ...
2
votes
1answer
592 views

Exchange 2010 OWA send connector issue

I have problems sending emails outside organization using OWA (Exchange 2010 installed on SBS 2010, domain is domain.local, local DNS). Web-server and email server are hosted remotely, I am using pop ...
3
votes
2answers
346 views

internal AD domain vs. internet domain

By mistake the internal Active Directory domain was named as an Internet domain that the company does not own. Exchange 2010 was installed and runs fine internally. The problem is now they need to ...
0
votes
1answer
367 views

Outlook is not connecting to Exchange server 2010 for sometime during start up

We have an Exchange server 2010 and all users are using Outlook 2010. Everyday in the morning when users switch on their PCs their Outlook remains in the not connected state. We can ping to the IP ...
2
votes
2answers
1k views

Some senders from external domains receiving “User Unknown” Errors

As far as I can tell, this question doesn't already exist here but if it does then I apologize. As of January 1st our company name has changed and, as such, our e-mail addresses have changed. The ...
2
votes
4answers
3k views

Eliminate certificate warning when users access Outlook/Exchange 2010 on split domain setup

I have an internally-hosted Exchange 2010 Server with an internal domain, EXCHANGE0.COMPANY.COM. I have configured all users to access Outlook (even internally) using Outlook-over-HTTP. To do so I ...
0
votes
1answer
856 views

why is exchange failing outbound smtp test?

I am using https://www.testexchangeconnectivity.com to test outbound smtp connectivity. I am getting this message at the last stage: Attempting to find the SPF record using a DNS TEXT record query. ...
0
votes
1answer
101 views

Configuration of send connector for Exchange 2010

I'm having a problem with the initial setup. I need to add an (A) record and an (MX) record on my DNS server and am new to exchange. Can anyone point me to a link for step by step, please Roland
1
vote
3answers
6k views

4.5.1 4.4.0 DNS Query Failed

We are running Exchange 2010 and lately I have noticed that some outgoing messages get stuck in the queue with the error "451 4.4.0 DNS Query Failed". On every domain that this happens on I have been ...