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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21 views

What is the best way to setup email hosting on different server

we want to use server "xyz" for emails and meanwhile keep the site on server "abc" we have entered both name server records into godaddy. ns1.abc.com ns2.abc.com ns1.xyz.com ns2.xyz.com In server ...
1
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1answer
41 views

DNS mail record concatenates IP address and hostname together

I have the following BIND zone file pointing the webserver to yyy.yyy.yyy.yyy and the nameservers and mail server to xxx.xxx.xxx.xxx: $TTL 300 @ 86400 IN SOA ns1.domain.com. ...
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1answer
20 views

Email reception directing the domain request to EC2 instance

I'm not able to receive any emails on my GoDaddy hosted domain after changing the DNS settings for redirecting the domain request to an AWS EC2 instance. Even though it's a common scenario, I would ...
0
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0answers
31 views

Using MX records for load balancing on *outgoing* email: bad practice?

I operate a Rails application (a Discourse forum) that needs to send out email. My sysadmin told me I shouldn't use a specific outgoing mailserver, but rather specify my domain and have my app lookup ...
1
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1answer
25 views

How to redirect MX records to origin domain name?

For a home setup I only have 1 public IPv4. So I have to use it for all my hosts. Luckily I have only one. So in the DNS I use the at sign @ to define the origin, example.com with an A record where I ...
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votes
2answers
32 views

Local mail + external Office 365 Exchange account

I'm not an expert at all so I'll try to explain my problem clearly. I've a domain that I manage with cPanel. I've also an Office 365 solution I suscribed directy on the microsoft website. When I did ...
0
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1answer
27 views

Mail Clients stopped working after MX Change

At first I was using 'example.com' as my MX record and everything worked fine, IMAP, SMTP, sending mails from the mail clients. And then I changed my mx record to 'mail.example.com' and everything ...
0
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2answers
42 views

How reliable is validating email domain by reverse DNS MX record checking [duplicate]

This question is not about how to protect against spam or validate a particular email user. But how reliable is validating emails domain (does it exists at all) by reverse dns. What are the pitfalls ...
0
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2answers
30 views

MX record for different email domain

I'd like to create an MX record inside my lan to test a local email server, but with a different domain name. I have a Windows 2012 DC and a domain called company.local, what I'd like to do is to ...
10
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3answers
274 views

MX priority server behaviour

This is a question about MX procotol priority. If I have two server as MX with different priority: MX 10 serverA MX 20 serverB Is this guarantee by the protocol that the MX 10 is the prefered? Can ...
0
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1answer
590 views

Missing or Invalid DMARC Record in server mail

my main problem is that I am not receiving mails to my domain after adding an MX Server to my domain for mailing in Webmin, and After testing a server by mxtoolbox.com tool, I found that there is ...
3
votes
1answer
134 views

No MX records?! Zone file for Shopify vs. hosted email

One of my hosting clients has a website: www.vincedevito.ca. Some time ago, he decided to use Shopify as his primary website, but I still host his email. Therefore, I set up a DNS Zone with GoDaddy. ...
0
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1answer
43 views

MX records for wildcard and subdomains

I would like to setup the MX nameservers of a domain domain.com so that every income email goes to mailgun (or other inbound email processor), including all the possible subdomains ...
1
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0answers
38 views

Email validation fails on HELO / RCPT TO commands to records

I'm migrating a mailing service from a server to another. Before setting up new mailing list I wanted to process it through an email validtor I've setting up on the server. I basically used this tool ...
2
votes
3answers
80 views

Two technologically different mailserver (Postfix / Exchange) for one domain

I have a couple of users on a Debain Postfix Mailserver. All is fine. Now we need to put some users to a hosted Exchange Server (Office 365). Is it possible to configure the mailservers and DNS MX ...
0
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1answer
27 views

Migrate website away from cPanel but keep email on cPanel? [closed]

I'm new to cPanel/WHM and have relatively basic knowledge of MX records/mail routing, so bear with me if I'm missing something obvious. I've a new customer who has a VPS with cPanel/WHM installed. ...
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votes
2answers
57 views

Why are my MX records not being found and working [closed]

Ok I have been racking my brain for hours and have read every article I can find about MX records. I am just not sure why mine have stopped working. Here are my current MX records: Domain ...
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votes
1answer
27 views

How to know MX record details of a subdomain or destination server to which emails are routed in a case co-existent of two service provider [closed]

In case of two co existent service email provider for one domain. How can i know the mx record of a destination server if I don't know the details of a subdomain. Are there any tools to detect the mx ...
1
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2answers
30 views

Moving to different hosting provider, what does it mean for MX record and static IP?

Currently, our ISP is also our hosting provider. Our MX record points to mail.example.com. when our website is at example.com pinging mail.example.com gives the static IP we get from our ISP. The ...
1
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2answers
90 views

I recently changed my hosting and now I can only send emails and not receive using GMail [closed]

I have a domain name (emmasteed.co.uk) that I have hosted with UK Reg and I recently moved my hosting to GoDaddy. I have an email that I have used for a few years now: emma@emmasteed.co.uk. When I ...
-1
votes
1answer
41 views

How do I configure postfix to deliver mail to the first MX record only?

Currently have a postfix server running as a backup mail server for several different domains. So when the primary mail server goes down, email will go to the backup server (second in the order of ...
13
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0answers
560 views

Server 2012R2 DNS server returning SERVFAIL for some AAAA queries

(Rewriting most of this question since a lot of my original tests are irrelevant in light of new information) I'm having issues with Server 2012R2 DNS servers. The biggest side effect of these ...
7
votes
3answers
593 views

MX record point to itself, possible?

Lets say I have the following DNS active for domain example.com (leaving out priority and ttl) example.com A 123.45.67.89 mx.example.com A 123.45.67.89 example.com MX mx.example.com ...
0
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1answer
38 views

Postfix - Google Apps for Business - MX Records - DNS

We are planning a migration away from Google Apps for Business handling our email services. The services worked well to get us out of the gate, but now we need to consider scale, both volume and ...
1
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3answers
104 views

Wildcard CNAME, normal MX record: Risk of unintended mail routing or hijack?

Our domain has the following DNS records: *.example.com IN CNAME foo.org example.com IN A x.x.x.x example.com IN TXT "v=spf1 mx -all" example.com IN ...
0
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1answer
58 views

Google Apps email messages being flanged as “failed fraud detection” on outlook [duplicate]

mx entries for gmail and spf code for gmail is in place on cpanel however every time I try and send an email from my google apps account it gets picked up as fraud on outlook, and spf=softfail (if ...
0
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3answers
215 views

Properly configuring DNS for email sending on multi-domain hosting VPS

Background I have a VPS, with one external IP hosting <10 domains (DOMAIN.TLD). Each domain receives and sends email. Each domain has associated DKIM / SPF / MX entries. The PTR record exists and ...
0
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1answer
393 views

Postfix + Dovecot + IMAP SSL: imap-login: Aborted login

Am getting familiar with email Mail Server components and configuration. Knowing that there have been quite a few configuration changes to Dovecot 2.x and willing to use SSL encryption, I have come ...
0
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2answers
30 views

Create multiple email-server names

My email server has two domains and the email hostname for each of them is mail.domain1.com. I'm attempting to remove the 'mail' in mail.domain1.com for domain 1 and set domain 2 to domain2.com. So ...
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votes
2answers
74 views

How to configure Zone File to point a subdomain to another IP

I'm trying to configure a subdomain for a staging machine we have, to no avail. I'm no expert at all in Zone Files and configuration management, so please be patient if something I say sounds weird or ...
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votes
2answers
92 views

how to have domain without www and MX records work together? [closed]

I think i have a common problem but wasn't able to find much resources for answering it. We have a domain and it works when we resolve it as www.domain.com, i have also setup a MX record pointing @ to ...
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votes
1answer
91 views

VPS Email Setup - Can send but can't receive [closed]

Set my first VPS up yesterday and brought a domain name from 123-reg and got the domain working properly. However today I set up an email account via cPanel. The email account can send out emails but ...
0
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1answer
89 views

Inserting mx records in forward zone

What is the correct way (and why) to add MX records to a forward zone using bind9? Option A @ IN MX 10 mx1.example.com. @ IN MX 20 mx2.example.com. mx1.example.com. IN A a.b.c.d mx2.example.com. ...
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votes
2answers
76 views

Setting up Google mail server on custom domain

I'd like to use Gmail for Work for my own domain and I have troubles setting it up. So, before that in my DNS config I had an "A" record (mail.example.com), pointing to the email server I used. Now, ...
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votes
1answer
79 views

Change MX record to another server

I have a host-machine with Centos 7 and a guest machine with Centos 6.6. I want my guest to be a mail server on dedicated static ip for all my domains (on the same host-ip and not). P.S. I use ...
2
votes
1answer
98 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 ...
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votes
1answer
53 views

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

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
48 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
176 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
203 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
133 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
119 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 ...
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votes
2answers
114 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
111 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
34 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 ...
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votes
1answer
62 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
118 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
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2answers
820 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
66 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, ...