The MX record is a type of resource record in the Domain Name System that specifies a mail server responsible for accepting email messages on behalf of a recipient's domain.

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23 views

How to configure Google apps email for my domain [closed]

My site is hosted on amazon EC2 instance and I purchased domain from Godaddy. I want to configure Google apps email for my domain, but I have no clue what exactly I want to do and where I want to ...
0
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1answer
31 views

Can I migrate only some users to Office 365 and keep the rest on our on premises mail server?

We have an on premises mail server (not exchange) and we have been evaluating Office 365 for a while and really like it. As a migration path, and to work out any kinks, is it possible to have our ...
0
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1answer
36 views

MX Record For Hosted Domain

I have an exchange server with multiple domains hosted on it. Lets say these are the domains. company1.com (main), company2.com, company3.com The server uses email.company1.com for its name on the ...
-3
votes
2answers
50 views

CNAME interfering with MX record? [duplicate]

I have got a free domain at Freenom, which I use to host my website, and to receive email. About a month ago, I used an A record to point [Blank] and www to the A record of my webhosting. I also had ...
0
votes
2answers
75 views

DNS MX vs CNAME entries

I have recently bought a domain for setting up a website. The website is hosted on OpenShift. Since OpenShift doesn't use its own nameservers, I've edited the DNS records on the domain registrar's ...
0
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1answer
21 views

host -t MX pro.lan -> pro.lan has no MX record

Setting up some service on my server. DNS/DHCP/Gateway ok for my own local network. Planning to host a web mail server (working on local for users for now) I added in my dns A and MX record (rDNS ...
-3
votes
1answer
36 views

MX does not work, after setup CNAME [closed]

I have the following configuration in the DNS server (1-configuration): -------------------------------------------------------------------- Host name | IP address/URL | Record Type | MX ...
2
votes
2answers
39 views

Will adding an MX record for email forwarding conflict with an email provider like sendgrid

I'm planning on receiving email/forwarding email using postfix, but sending email using sendgrid. According to this tutorial, I need an MX record pointing to my machine - ...
0
votes
2answers
73 views

SMTP Reverse DNS Mismatch Reverse DNS does not match SMTP Banner

I wonder if you could help me? I have set rDNS to mail.simplyislam.biz for IP 178.32.48.104 with my hosting server and also in DNS control panel. However, I am still failing this test: ...
2
votes
1answer
43 views

SMTP service detection

I have some basic questions regarding SMTP connections, particularly for Postfix but would appreciate advice for MS Exchange too: When a single relay for a given remote domain becomes unavailable, ...
-1
votes
1answer
26 views

MX Record without a static IP [closed]

There might already be an answer for this, I didn't find one, maybe I'm looking for the wrong thing. The situation: one domain x.org which has a dyndns to my non-static home IP one domain y.org ...
0
votes
0answers
17 views

Second email domain records, stop primary domain email from working after DNS propagation

I have an exchange 2010 server with a public IP address. I recently added a second Accepted Domain to this, tested internally and it worked fine. I then went to the Hosts control panel and added the ...
0
votes
1answer
71 views

Postfix blocking mail from backup MX

I have two CentOS 6.6 servers configured with Postfix for sending email. I have everything working great, SPF entries, Domain Keys and OpenDKIM configured and working, but I'm trying to perfect my ...
0
votes
1answer
20 views

Good idea to add Google MX records with old records to not lose mail?

Currently im looking to transition to google apps for mail service. Right now I'm using my own mail server. Would it be wise to just leave my current MX entries as is and just add in the google MX ...
1
vote
2answers
52 views

Wildcard MX record support?

Let's say I want to start a service where customers get their own subdomain on my domain for email addresses only. I have an A record for mydomain.com and a CNAME for www.mydomain.com If I add a ...
2
votes
1answer
43 views

SPF records clarification of using A mechanism

What is the difference between using v=spf1 a ~all and v=spf1 ip4:IP_OF_A_RECORD ~all or v=spf1 IP_OF_A_RECORD ~all when configuring SPF records? Which way is correct and more robust and reliable?
0
votes
1answer
33 views

find server mail address

A friend has asked if I can help him out on a project he's doing, however it looks like I'm struggling! Hoping I'm posting in the right place, many apologies if it's wrong. Been searching all day to ...
1
vote
1answer
40 views

Originating (non-critical) emails from a “less-trusted” host

Background We have a webapp running on webapp.example.com that (amongst other things) sends messages by email from time to time. These messages are non-critical: whilst we would like to make a best ...
-1
votes
2answers
32 views

Forward non-hosted .de email addresses to hosted .com

I have a domain with associated web and email hosting package ( let me call it mydomain.com ). I also have a second domain ( mydomain.de ), this one doesn't have email hosting. I would like to make ...
1
vote
1answer
249 views

Changing hosts resulting in 554 5.7.1 <xxx@domain.tld>: Relay access denied

I have a problem with switching my project from hoster A to hoster B. There are three parties involed: the old hoster, the new hoster and NetworkSolutions as a registrar. I have a .com and and a ...
-3
votes
1answer
59 views

Postfix and multidomain

I'm trying to setup postfix to use multi-domains mail. Right now, I can send mails to user@ns3289160.ip-5-135-180.eu, but sending mails to user@domain2.com isn't working: I receive the following ...
0
votes
1answer
94 views

Lotus Notes subdomain exchange server

We have a notes server at notesserv01.intra.contoso.com that processes our regular email, and an exchange server at exchserv01.intra.contoso.com for testing purposes. Lotus Notes email addresses are ...
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2answers
38 views

Is it possibe to do an exclusion in an MX record? [closed]

Is it possible to exclude certain addresses or wild card addresses using an MX record?
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votes
1answer
130 views

Ignore MX record and send mail directly to an Office365 address [closed]

I'm a bit of an amateur at this so bear with me, here's the problem: The current email provider for the company only allows a single Office365 exchange account per subscription. They do not allow ...
0
votes
1answer
622 views

Getting a [550 5.1.1 Recipient not found] (Can't receive email) with CloudFlare

I'm having troubles with my email account. I'm using GoDaddy's Email service and the domains that are not connected to CloudFlare are operating just fine. The problem comes in with the domains that I ...
4
votes
1answer
410 views

Replacing an MX record with a CNAME that doesn't match the hostname

Today we have 5 companies that all use Google for email services example1.com. 3w IN MX 10 mail.Google.com. example2.com. 3w IN MX 10 mail.Google.com. ...
0
votes
2answers
136 views

Microsoft Exchange sending to incorrect mail server address

My client is having intermittent problems sending email to a few customers. It has really only happened in the last five days and so far only to six different messages but they all have the same ...
0
votes
2answers
161 views

How to block IP addresses from port 25 [closed]

PROBLEM: Users are getting 15-20 SPAM emails per hour, even with SpamAssassin set to its most aggressive settings SOLUTION: SPAM filtering services are available from companies like McAfee (Intel). ...
4
votes
1answer
336 views

What does MX in SPF mean? [duplicate]

I'm setting up an email server, and I'm a bit confused by SPF. Following some examples, I set my SPF record as follows... v=spf1 mx ip4:1.2.3.4 mx:mail.mydomain.com ptr:1.2.3.4 -all I follow what ...
0
votes
1answer
33 views

Redirect email for redirected domain [closed]

I have two domain names with a registrar, one points to a server running plesk with a subscription setup to host the website. The second domain name simply redirects to the first using the registrars ...
3
votes
3answers
242 views

MX or A record issues

We have a mail server (Mailenable) which we are using to sell email accounts to our clients. We have one client that could not send email to a specific domain and they receieve this error from the ...
0
votes
0answers
54 views

Exchange with Postfix MX for technical accounts in same DOMAIN

I have organization configured with Exchange 2007 server with many technical accounts. I would like to migrate technical account to Postfix server with same domain At the moment my structure is: ...
0
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1answer
95 views

Moving a web server without moving the email server

I need to move a client's website off their old host and onto their new host without changing their email server. I've read this extremely thorough answer on a similar question ...
1
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1answer
45 views

postfix destination full/busy/error try another destination

Does anyone know if it is possible to setup postfix with a destination for a domain. If that destination (which is also running postfix) can't accept the mail because it's disk is full or it is ...
0
votes
2answers
157 views

mx server: multiple domains on one ip

I'm just a bit confused about the correct DNS setup for hosting multiple domains on a single server with one ip. For example the mail server (domain/reverse: example.com) should host 3 domains: ...
0
votes
0answers
20 views

Is it possible to whitelabel MX records? [duplicate]

I have a domain at example.com. I would like to setup email hosting with Zoho email services. Is it possible to setup imap.example.com to forward to imap.zoho.com? I have tried adding a CNAME ...
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votes
1answer
41 views

change Domain MX

I have a windows server and I set my domain name servers to this server. now I want send email from another server, really my web application and mail server aren't on a same server. the mail server ...
0
votes
0answers
47 views

Bind caching nameserver MX lookup error for Low TTL Records

We are running Bind (9.8) as Caching Nameserver on a CentOS 6.x based mail server. We get frequent domain not found error for certain domains resulting in mail delivery failure. It was discovered ...
1
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1answer
58 views

Change of MX records priority seems not to entirely working

I am in the middle of a Cutover Migration from Exchange 2010 to Exchange online. Accidentally for about half a day, i have changed the priority for the Exchange Online MX record to be the lowest ...
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votes
1answer
47 views

How to set up email forward via DNS

We currently have old_domain.com as the primary domain in google mail and new_domain.com as an alias. We want to change new_domain.com to the primary domain. Unfortunately google has a 24 hour lock on ...
53
votes
6answers
6k views

Why can't MX records point to an IP address?

I understand you should not point a MX record at an IP address directly, but should instead point it to an A record, which, in turns, points to the IP address of your mail server. But, in principle, ...
0
votes
0answers
79 views

DNS - Multiple MX records not working for a single domain

I have one domain, let's call it example.com with 2 MX records. The first record points to my on site Exchange 2013 server with a priority of zero, making it the preferred server. The second record ...
1
vote
1answer
109 views

Postfix relay and store

So, I am setting up a backup mail server. I got it relaying messages (saving them to queue and then, as soon as primary's up, deliver them to primary). It took following two lines: relay_domains = ...
-4
votes
1answer
66 views

MX point to different host then web server [closed]

I have read many answers on the topic, but still it isn't completely clear, I might need help due to the complexity of the matter. I will explain myself: We have a DOMAIN name for or email which is ...
0
votes
1answer
22 views

Moving a domain with Email configured

I have an MX records setup on my domain working with my Exchange 2010 server. Emails are working great. I want to transfer my domain to another provider. So far I have done the following: ...
0
votes
0answers
18 views

“Reverse” traffic routing with Google Apps + web host?

I'm a very experienced web designer with only minimal experience with web traffic routing. I'm also a hosting reseller who got bitten by the Great HostGator Crash of 2014, and for one of my hosting ...
0
votes
2answers
62 views

Does an MX DNS Record Sub-Domain need to exist as another DNS Record?

I am trying to setup a mail server on my Ubuntu server. In setting up the DNS MX Record for the mail server I am confused. I have added an MX record for mail.domain.com simply because it is the ...
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votes
1answer
53 views

Determining the old MX record [duplicate]

Our sysadmin created our mailserver years ago before he left. We recently decided to use gmail as our mail app and they required us to change the MX record to point to them on amazon route 53 app. I ...
2
votes
1answer
130 views

Multiple MX records pointing to multiple servers for a single domain

Is it possible to have multiple MX records pointing to multiple mail servers for a single domain? Must all mail accounts be identical on each of those servers, or is it possible to have ...
1
vote
1answer
180 views

Set MX records on a CNAME domain (heroku app)

I have a heroku app on a subdomain like x.herokuapp.com which is mapped to my domain name via a CNAME record. I want emails to be handled by zohomail so I've tried setting up MX records but these seem ...