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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Best Practices for preventing you from looking like a spammer [duplicate]

I'd like to feel more confident setting up mail for my clients with regards to false positives. Here's what I know: SPF records are good, but not every spam filter service/software (SFSS) uses ...
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5answers
449 views

Many domains/sites hosted on same server, CNAME alternatives to avoid writing same IP in DNS?

I have many sites (each one with its own domain) all on the same cPanel hosted server (let's say server IP is 1.1.1.1 and server main domain is myserver.com) All these domains use third party DNS ...
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3answers
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DNS: Is it valid to have an “MX” record and no “A” record?

Say you own a abcd.com and you only want to use it to send and receive email via bob@abcd.com. You don't want to provide any kind of website. Can you set up the DNS records to include an "MX" record ...
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1answer
683 views

Move primary domain hosting from GoDaddy, but keep email & subdomains there w/ non-GoDaddy registrar

Given a domain registered through DotRegistrar, with GoDaddy as the current host (shared hosting) I need to figure out how to move the hosting for the primary domain to another hosting provider ...
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3answers
2k views

MX Backup service

What suppliers can you recommend, that provide an MX backup service?
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4answers
12k views

How do I set an MX record in Route53 for a GoDaddy domain?

Can't seem to find an answer to this question on AWS' forum, not in the Route53 manual, nor on Stackoverflow/Serverfault in a way that makes sense...and GoDaddy's support sure as heck ain't got an ...
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3answers
442 views

How to make sure that in case of our mail server being unreachable (connection down) mail still gets queued and resent once it's back up?

We have had some issues with losing internet connection once in a while. Normally that would mean our mail server is unreachable and incoming email is bouncing. We've set up MX Backup (second MX ...
3
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1answer
834 views

sendmail: forward wildcard MX to a single email address

I'm trying to set up sendmail to forward all email to *@ *.crm.mycompany.com to crm@mycompany.com. Unfortunately my sendmail-fu isn't up to it and I can't find anything useful on Google. My plan was ...
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4answers
220 views

Does sending e-mail in the name of customers increase the risk of being marked as spammer?

We are developing a SaaS website application that lets users send invoices to their clients. Ideally, these e-mails should appear to be originating from our customers, so the sender e-mail address ...
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4answers
11k views

Can I use multiple email servers at once?

I was wondering: Can you use multiple email servers at once? In this case, I was going to add all the Google Apps MX records then add the MX records of another email server. My goal here is to only ...
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5answers
957 views

Under what circumstances (if any) should an MX record point to localhost?

I'm thinking that there's absolutely no reason or justification for this, but before I open my mouth and get some admin in deep kimchi, I thought I should ask. Is there any circumstance in which an ...
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1answer
491 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?
3
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1answer
263 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 ...
3
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2answers
207 views

Forwarding-service for emails on external hoster by MX-record

I am registering domains on behalf of customers and host their websites on my server. I have complete control over the DNS setup of my customer domains. I still want to host their websites, but I ...
3
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5answers
3k views

How do I setup a secondary incoming mail server?

I currently have a server running Debian 6, with postfix and dovecot handling email. This server hosts email for a number of domains and users, so I use MySQL as my backing store for users and ...
3
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5answers
634 views

Fixing typos in user-entered email addresses

We see some typo domains in our mail queue from time to time and I have been thinking of using our internal DNS server to correct these people's mistakes. Some examples from the current mail queue: ...
2
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3answers
432 views

DNS, should I be using A instead of CNAME?

I'm doing a big reshuffle of our websites and hosting, moving about 10 domains to a new server. In doing so I had to make some changes to the DNS, pointing all of the domains at the new server. ...
1
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3answers
899 views

MX Record for SubDomains

I want to be able to send email to any subdomain I like and not have to configure A records and MX records for each subdomain. Ideally I could send an email to test@a.domain.com and test@z.domain.com ...
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3answers
2k views

Lots of emails I send bounce back

I am running an Ubuntu 10.04 LTS server and Amazon EC2. Just booted the community, installed apache2, php5, sendmail... thats about it. Didn't change anything in the configurations. Last night I send ...
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4answers
215 views

SMTP server requirements

Could someone help answer a few questions regarding the networking / DNS requirements for an SMTP server? Assume the server is setup already. Is a MX record required for SMTP? TCP port 25 open to the ...
0
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1answer
62 views

How can I disable local mail delivery in Centos?

I want to disable local mail on my Centos VPS because the I have a web form (on a website which is hosted by the VPS) which is delivering mail to the local mailbox rather than looking at MX records to ...
0
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1answer
361 views

Configure server to foward unroutable emails to another email server

Is it possible to configure a Linux mail server (we're running exim) to forward unhandled emails to another server? Here's an example of what I'm trying to accomplish: an email get's send to ...
0
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1answer
493 views

How to set up different MX records for outbound and inbound email?

I would like to use my own outbound email server Haraka with Node.js and Google Apps for inbound mail. Now my domain registrar gives one click Google Apps setup, however I've already set up my own ...
0
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2answers
792 views

Move web hosting to from HostGator to another provider, keep HostGator email

Similarly to this question, I have a client with a site hosted on HostGator which I wish to move to my own Linode. I know enough to navigate normal DNS settings, and assumed that simply changing the ...
0
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1answer
185 views

My email server is classed as a spammer by hotmail

I created an email server hosted at IP 65.75.241.26 with domain www.softmail.me using which I can send and receive emails from all users and I don't have problem with any other except hotmail. That my ...