-1
votes
1answer
42 views

A-Record to point to hosting vs. changing DNS while keeping the mail externally

I currently am dealing with a client whose e-mail is hosted on Google. We are just in the process of taking over their domain, but their current hosting company suggests a different set up than I do ...
0
votes
1answer
30 views

Finding valid email service providers in a large list of domains

I have a list of approximately 13K free email/webmail providers from circa 2000. Obviously the vast majority of these services have gone out of business, and the domains have either lapsed, or been ...
0
votes
2answers
35 views

SPF with a Mail Gateway: do I need to put all my mail servers?

I always put all my Mail Servers in SPF declarations, but I'm not sure if this is the correct way to implement SPF. All my mail got routed through a Mail Gateway. Everything goes first to this server ...
0
votes
1answer
50 views

Dns filezone setup with mx and spf

I am trying to create a mail server. I bought the domain mastermails.info on godaddy.com. I am struggling with the setup of DNS. Whenever I change something in the MX record to make my server ...
0
votes
1answer
54 views

MX records to ensure failure of email delivery

I'm managing a set of domain names that used to have MX records pointing to a hosted mail service. When the hosted email service was deactivated, emails sent to the (now invalid) addresses resulted in ...
3
votes
1answer
200 views

A record required for MX record?

Previously our domain, let's call it ourdomain.com, pointed to an IP address (our web host). In addition, we use Office 365 to handle our domain email accounts. DNS records: ourdomain.com A ...
0
votes
1answer
102 views

What should be my MX records for postfix configuration like for mail forwarding?

I have a Digital Ocean VPS, at which I installed postfix. I want to do mail forwarding. When I installed postfix I picked No configuration option. Later I set up the following: I created main.cf at ...
0
votes
1answer
217 views

Sender address rejected (mx record not found)

I am using both Exim and Office 365 to send email - the server sends automated mails from an application using Exim and Office 365 handles day to day user and incoming email etc. I am getting some ...
0
votes
1answer
51 views

Setting MX entries for Failover [closed]

I have a GoDaddy domain as "example.com". I wanted to have my own DNS server for the sub domain secure.example.com. So I added a "A" record "NS" pointing to my IP and a NS record "Secure" pointed to ...
0
votes
1answer
68 views

Mail Server with different IP than Web Server [closed]

I recently had a problem. Somebody hacked a Wordpress Site of one of my customers and sent about 70.000 Spam Emails. So my Server IP got blacklisted on some Providers. I'm looking now for a solution ...
0
votes
0answers
20 views

Changes required to SPF record [duplicate]

Our email is delivered to an IMAP account on an external server. We have the option of relaying mail through this server (which we sometimes do) but usually send directly using Microsoft Exchange ...
0
votes
1answer
32 views

How to DNS emails to vhosted domain to separate server than website

I apologize if this is a duplicate, but I'm not sure of the correct phrases to search to ensure this hasn't been solved yet. I have 2 servers, with PTR records of domain.com and mail.domain.com. The ...
0
votes
1answer
104 views

Using alternate server for specific subdomain - DNS settings

I'm trying to set up DNS records for a domain name, such that mail.domain.com uses a server that is different from any other request to *.domain.com. As I've been going about trying to figure out how ...
2
votes
2answers
77 views

Will MX records with a longer TTL help mitigate effects of DoS attack?

We have our email hosted at Google Apps, and have our DNS servers for the domain setup at Namecheap. About a month ago our website went down (not a big deal, since it's most just a contact info ...
3
votes
3answers
44 views

Does a host/domain used solely for MX records pointing elsewhere need an A record?

I've got a domain on dns.he.net that only has an SOA record, NS records, and one MX (pointing to a totally different host). Does my domain need an A record? Currently nslookup fails since there is no ...
0
votes
2answers
49 views

Do I need an MX record for my main domain?

Let's say I have several domains. bossguy.com is the domain that hosts my mail (IMAP server) and where I ssh in to manage other domains, for example: domain1.com domain2.com domain3.com It makes ...
-1
votes
1answer
44 views

TTL on DNS for domains as a security measure [closed]

Ever since I read this article the other day, I've felt a bit uncomfortable about my domains being stolen. And I've tried taking each measure possible. But one I don't understand completely is TTL. ...
0
votes
2answers
45 views

Using Gmail apps. New VPS. All mail working except incoming mail to @domain.com emails sent from server

So I just noticed this issue, and it's rather urgent we find a solution, it's literally been ongoing unnoticed several days, as any communication being sent to us from our email forms and offer forms ...
1
vote
2answers
109 views

MX lookup failed

This is a part of my dns-zone file: ;; MX Records mx.domain.de. 300 IN MX 1 direct.domain.de. ;; CNAME Records www.domain.de. 300 IN CNAME domain.de. mail.domain.de. 300 IN CNAME ...
-1
votes
1answer
26 views

Emails on other server, dns & mx

I must host emails on other server, my way was: Edit DNS to my server MX Record edit in the zone file (editing with a GUI) If I change for example SOA serial, retry, refresh then are my changes ...
0
votes
1answer
143 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 ...
0
votes
1answer
77 views

DNS Redirect Website to another Server

I have two servers, server 1 and server2. The name serververs of the domain points to server1. 1.I have this configuration regarding Server1 DNS Zones: domain.com. 1200 IN A server2-ip Edit ...
1
vote
1answer
42 views

BIND int/ext views, need to return ext MX to int clients

Any DNS pros out there? I have a problem that's stumping me. I have a BIND DNS server that (with views), supports both internal and external DNS. All internal clients look at the internal view for ...
1
vote
2answers
256 views

Why does MXToolBox not return MX records for my domains hosted with Amazon Route 53?

Ok, this should be straight forward and I'm ashamed I haven't been able to figure this one out for myself, but... I've recently discovered Amazon Route 53 DNS services and I'm now using this for the ...
1
vote
2answers
56 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
1answer
17 views

redirect emails from one domain to another

i have 2 domains. domain.com and domain.org all my emails are at domain.org so i have user1@domain.org user2@domain.org etc... i want that if some have a mistake and he sends email to ...
0
votes
1answer
143 views

Switching hosting, keeping mx records

Nice to meet you all! Here is my dilemma: I have to move a website to another hosting but keep the domain. The client currently has email set up with google apps and the mx records are set up ...
0
votes
2answers
31 views

Can I control which DNS record a client application uses?

I'm trying to make our set of servers more fault tolerant. I have a web server, a mail server and a PBX server that uses SIP. I know that for each service, I can have the DNS return multiple A, MX ...
2
votes
2answers
82 views

Postfix - receive mails in user account

I have successfully installed and configured postfix mail server, and I can now send mail from my user account mail to another email on the net, through Gmail. What I want to achieve: is to send ...
0
votes
3answers
102 views

Setting DNS for GitHub pages to avoid mail server conflict

I would like to set up a github user page. I have created the repo and now I need to update my DNS records. I have the following DNS entries at the moment: MX Records mail.example.com A Records ...
0
votes
3answers
69 views

How to change domain's A record without disabling incoming mail traffic for a while?

I have situation where my domain's A record is pointed to certain IP address, which I need to change, but MX record have destination - to my domain name! How to change A record and to avoid mail ...
0
votes
2answers
32 views

Required entries in DNS records [closed]

Writing a brief best practices technical document for in house. A Records for hostname / IP mapping (blank).mydomain.com www.mydomain.com *.mydomain.com -can also add subdomain, ftp, cpanel, etc ...
0
votes
1answer
167 views

Server Move - MX Record pointed wrongly

I am trying to move a site from host A to host B and email is hosted in host C and we would like to retain the same. I have set the same MX record for both A and B, however when I run a test at ...
2
votes
1answer
180 views

BIND and SERVFAIL

I know that this is a little outside the scope of this website, but I am trying to set up a test DNS server, and it absolutely refuses to resolve the local domains. I've tried following the advice of ...
-1
votes
3answers
112 views

What's the difference between an MX record and a `@` host record?

I am rather new to DNS, and I am not sure as to how I should transfer the hosting of a website from one server to another, as well as the email and/or without the email. I inherited the following ...
0
votes
1answer
102 views

Setting up Outlook.com as mail server MX record trailing dot

Outlook.com is allowing to connect your domain to their email servers. To validate the domain they give you the following instructions: In my domain registrar i've defined mysite.org.il. 86400 ...
0
votes
1answer
104 views

rDNS setup to prevent emails appearing as spam / phishing messages

We are trying to send email without the email appearing in the spam folder. The emails that we are sending is solicited bulk email. The main problem is that the emails are appearing as phishing ...
0
votes
1answer
56 views

Editing the DNS records to receive emails into two email hosting providors?

I have a website and I tried to configure my domain to work my email on Outlook so that I can have my email addresses with my own domain. This worked sucessfully for me. I had two scenarios: ...
0
votes
1answer
62 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
1answer
53 views

How to forward emails from a domain to 2 different servers?

I am not sure the title describes my problem properly, so let me explain. I have a domain called example.com. I have currently set it up for email services from Microsoft Live domains. I have done ...
0
votes
2answers
450 views

Outgoing mail through isp's smtp server is not getting delivered

What's the problem with the following emails? 1- Diagnostic information for administrators: Generating server: mailrelay002.isp.belgacom.be secretariat@lagereschoolbissegem.be [195.47.247.194] ...
3
votes
1answer
212 views

is there any way to determine the date a domain DNS record like MX record was published ?

We need a way to determine when exactly a DNS record such as MX was published for a domain. Does anyone have a clue?
0
votes
2answers
240 views

How to manage cname, MX and Azure

I am hosting my domain at 1&1 and have a VM and a mobile service in Azure. Currently I have set a cname to xxx.cloudapp.net. Now I want to create a subdomain for my Azure mobile service (something ...
5
votes
1answer
153 views

Is an MX record needed?

We have a testing server with its own domain name. We don't want any email to be sent from this domain. We don't want any email to be received on this domain. Is it ok to remove the MX record ...
0
votes
1answer
52 views

MX record on Win 2k8R2 not being recognised?

I'm sure I'm making an obvious mistake here somewhere but I'm stumped where! Trying to set up MX records for my domain (alpinered.co.uk) on the Windows DNS Server. I've got an A record set up for ...
1
vote
3answers
631 views

CNAME, openshift, MX

I had records in my DNS panel: subdomain type domain priority (for MX) @ CNAME app-***.rhcloud.com. @ MX mx.yandex.ru. ...
2
votes
1answer
78 views

DNS: external mail - webserver down

I'm currently running a small plesk server with a couple of domains. I configure all DNS settings of a domain in a custom "zonefile" of the company providing the server (hetzner), stored on hetzner ...
0
votes
1answer
566 views

In DNS check, what “different subnets” and “number of MX records” warnings mean?

In DNS check tools like intodns and dnsstuff, what are the following warnings means and how to avoid: Different subnets : WARNING: Not all of your nameservers are in different subnets. Number of MX ...
-1
votes
1answer
871 views

Do I need to have multiple MX records that point to different IPs that are in different subnets even if I only have one dedicated server?

I own and operate a single dedicated server that offers shared web hosting space to my clients including email services. Is it possible to have multiple MX records for each client domain, and have ...
0
votes
2answers
115 views

DNS Record for Sending Mail Server

Have 3 servers - web server, mail server and outbound-only email server. The outbound-only email server sends transaction based emails on behalf of the web server (password reset, contact us, etc.) ...