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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2
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1answer
22 views

PHP/mail is sending emails to wrong mail server

Recently we have switched our email Exchange server from Intermedia to the Office 365. After that change web server (LAMP) is still sending emails to Intermedia. I have check dig MX for our domain and ...
0
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0answers
11 views

Proper records for mail and domain [duplicate]

I am having the following question: I have a domain (let's say example.com) and I need to set up the proper records for the e-mail so that to minimize the possibility for a message to go to spam. I am ...
-1
votes
1answer
38 views

Seperate web/mail server, mailserver won't receive emails [on hold]

I have a basic set up: VPS Mailserver Domain Management This is my first experience setting up both a VPS and a separate mail server. My mail server won't receive emails. DNS A ...
0
votes
2answers
30 views

MX Records Not Getting Resolved By Google Apps

My domain is nexussolutions.com.np. My mail is on Google Apps. My domain host has pointed the MX Records to Google servers. I am getting some mails but not getting many mails. On mxtoolbox.com, the ...
1
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1answer
39 views

Differing Internal vs External MX records

The setup: The business runs an internal DNS server not accessible to the public internet. The business's domain is registered with a registrar and the authoritative name servers outside the local ...
0
votes
1answer
51 views

Fixing invalid DNS records for mail server with SSL certificate

Ok, so the question name is a bit weird but I wasn't quite sure how to word it. I have a machine with the hostname foo.example.com with an SSL certificate for the domain mail.example.com. I have also ...
0
votes
1answer
38 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
votes
1answer
43 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
54 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
87 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
votes
1answer
22 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
38 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
48 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
109 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
47 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
28 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
93 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
53 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
45 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
34 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
43 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
33 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
250 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
73 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
123 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 ...
-1
votes
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?
-4
votes
1answer
144 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
858 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
415 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
174 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
181 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
343 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
35 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
266 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
57 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
votes
1answer
102 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
vote
1answer
49 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 ...
1
vote
2answers
205 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 ...
-1
votes
1answer
42 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
50 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
vote
1answer
64 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 ...
-1
votes
1answer
51 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
7k 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
83 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
114 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
68 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: ...