3
votes
0answers
90 views

Exchange 2007 not delivering to primary MX of one domain

I'm trying to send email to a domain that has two MX records. The higher priority record is IPv4 and the 2nd is IPv6. Exchange gives me a delivery is delayed message in my inbox after I've tried to ...
0
votes
1answer
142 views

Office 365 shuns MX records

I currently have a domain on Office 365 and I am adding a second one. However, the moment I added the new domain and verified ownership by adding the TXT record, my users on the first domain can no ...
1
vote
2answers
59 views

Assist in diagnosing reverse dns mismatch

We seem to have an occasional issue, whereby mail is bypassing our first three MX records, and going to our 4th MX record. This is purely a backup, and we think that the reason it is skipping the ...
0
votes
2answers
62 views

email arriving at wrong exchange server

We are having problems with receiving email from one customer, where any emails they send to subdomain.domain.com is being received by the exchange server for domain.com, resulting in an error ...
1
vote
1answer
728 views

Using a secondary ISP for Exchange failover

Good morning all, I searched and couldn't find an answer to the following question. We have our Exchange server 2010 in house, which was set up before I came to the company. Last week we got another ...
0
votes
1answer
68 views

Multi MX records with nonidentical e-mails

I have two domains, one forwarded to the other. I want to use 2 e-mail accounts on both domains as aliased but some e-mails only on the other domain. I will create 2 MX records for both domains with ...
0
votes
2answers
933 views

Emails still arriving to old Exchange server AFTER updating MX Records

We have changed our company MX records to point our emails from a MS Exchange server to Google Apps for business. This was done 2 weeks ago, so the MX records should have propagated, which intodns and ...
0
votes
1answer
108 views

Office 365 vs Hosting Exchange at our data center

Please give me your view on this question based on your own experiences. I am trying to determine if I should host our Exchange server in our data center (which host our websites with ~99% uptime). ...
2
votes
2answers
12k 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 ...
1
vote
1answer
88 views

Exchange 2003 issue after changing external DNS mx record

We currently use an external spam filter service that forwards our incoming mail to our internal exchange server. We have decided to stop this service and use Sophos pure messgage on our exchange ...
-1
votes
2answers
253 views

Exchange Receiving Mail Outside Domain, without using MX

Sorry if this is crazy sounding or not feasible, just a student trying to toy with Exchange in my own lab. I'm using ad.chigs.me as my FQDN for my Active Directory install on Windows Server 2008 R2. ...
0
votes
4answers
3k views

Storing emails elsewhere when Exchange server goes down

I will be setting up an Exchange email server at work soon but one thing I would like to know is what would happen if the mail server is down. Where would incoming messages go? I understand that ...
0
votes
2answers
3k views

Mail server on port 25 only response with 500 command not recognized

There is a mail server that I'm trying to test using telnet. I telnet to the server on the port and it responses with "220 ******************************************" The server is exchange and ...
0
votes
1answer
385 views

Exchange 2010 High Availability two sites mx records

I currently have two sites where one is just a spoke that talks back the exchange server at the main site. Luckily I'm finally getting some bandwidth between the two and I'm trying to figure out a ...
0
votes
3answers
163 views

DNS - MX - Entries

I have a server and sometimes it rejects mails (Relay access denied) I added a second MX entry (MX 20). Now the question: If the outgoing server gets a Relay access denied from MX 10 does it try to ...
0
votes
3answers
190 views

Two domains email to same user

I have two domains, website.com and website.net my primary one is website.net. They are both have the name servers pointed to them and .com is just forwarded to .net My concern is that when I email ...
2
votes
2answers
1k views

Postfix relay with Exchange Server

Is it possible (or even logical) to use Postfix as relay MTA with Microsoft Exchange Server 2007, and if so how?
0
votes
1answer
665 views

MX Record Update

We have just signed up to MessageLabs services. In their instructions they say that we need to: Configure your MX records: Inbound: Lowest MX preference (default mail route) – MX 10 ...