Use 2 different server for send and receive email - dns

I have a classified website in a VPS. VPS are configured only like Web & MySQL server. I actually use an external mail provider for send mail from cms used in website to users. I have configured DNS on Cloudflare like follow:
domain-name.xxx in A [WEB SERVER IP]
ftp in CNAME domain-name.com
www in CNAME domain-name.com
domain-name.xxx in MX mail.provider.host priority 10
domain-name.xxx in MX mail2.provider.host priority 20
domain-name.xxx in TXT "v=spf1 include:spf-c.mail.provider.host mx a ~all"
Now i want use only noreply#domain-name.xxx (large number of emails are sent from this email address) with Dedicated mail hosting provider (it's not cheap but is affordable) and I want to use info#domain-name.xxx, or personal email accounts like name.surname#domain-name.xxx on another hosting provider ( cheap :-) ).
I'd like know if is correct adding follow DNS rules for use a second server (for info# etc):
domain-name.xxx in MX new.mail.host priority 10
I don't know if i must add any other rule.

If the mail you are sending from your server is no-reply then you could:
use a service like Mailgun . It's ideal for transactional email, and very affordable. Since the website email is outgoing only, the only DNS entries you'll need are 2 SPF & DKIM records, no MX required
then in CloudFlare add just the MX for your info# and personal mail server
and finally configure your email to bounce anything to noreply#
If this would fit your business setup then it's easy and may well cost less than using a dedicated server for sending outgoing website email.
If you needed more options for the outgoing website email, Mailgun also let's you setup a subdomain like “mg.mydomain.com”. Using a subdomain you will still be able to send emails from your root domain e.g. “noreply#mydomain.com” and it will play well with your personal email.
Good luck!

Related

single MX record for all subdomains (gsuite)

I would like to route all my inbound mails for subdomains to sendgrid mail service.
I have added an MX record entry using wildcard (*)
When I try to send a mail to one of my subdomain ex:-(user#subdomain.mydomain.com) gmail was showing me an error the domain could not be found
Any help would be thankful
MX records to not have Wildcards, A records do... MX records have Priority and are for the Domain you set. To service Subdomain emails (which is odd), you would need to configure that outside of DNS and within the app that expects the emails to come-in (Sendgrid)
You should setup specific MX record for each subdomain, not use wildcard
Once you have a valid email, that your MX server is able to recognize a a valid mailbox, then you will be able to send to that email.

Confusion in setting up Gsuite email [Domain: Namecheap, Host: AWS S3, Serving: Cloudfront]

I have a problem setting up GSuite gmail. I can send out emails to other accounts; however, I cannot receive any emails from outside. My admin page says
Setting up email is taking longer than expected
We were unable to set up email, or your domain host is taking longer than expected to update your information.
My domain is registered with Namecheap. But it is served from Amazon S3. And the "https" certificate is verified and served through CloudFront. When setting up "MX Records" for Gsuite gmail, I set up in Namecheap. But it has been more than 72 hours, and Gsuite is still not picking up. In my situation, do I have to set up "MX Records" through Route53 because it is being hosted in Amazon S3?
You can setup MX records however if your domain is still not verified with G Suite you will not be able to use emails or any other service. Make sure to:
Your domain has been verified Verify your domain for G Suite.
MX Records are setup properly G Suite MX record values
If you domain is verified make sure that all apps on Admin Console > Apps > G Suite are enabled.
Also as recommendation set up SPF, DKIM and DMARC to authenticate email.
If you are still not able to receive emails I would suggest to contact G Suite Support. Also make sure where your Domain NS servers are pointing to, there is where you have to update the DNS.
It's not really an issue with Google, every domain's MX records are public, you can easily inspect your domain and verify if the MX records are already setup to Google, check https://mxtoolbox.com/ and make sure that the MX records are already ASPMX.L.GOOGLE.COM, if it's not, then make sure that the MX is updated in your NameServers (not necesarily your domain provider), same online tools can easily tell you which is your active NameServers (Google NS lookup tools).

Sendgrid Integration / DNS Setup

I am having some difficulty setting up my SendGrid account to connect to my DNS on Cloudflare and enable custom domain whitelisting for two domains.
My plan is to deploy emails from my Clickfunnels' Actionetics account. Currently, my integration into Clickfunnels is a success and I was able to receive an automated test e-mail (from my custom domain) to my personal email address. I understand that I should be able to send emails from any e-mail address I need (support#domain.com, hamid#domain.com, info#domain.com) without needing to physically needing to go through any setup process to get these emails up and running. Initially when I went through the SendGrid setup, I needed to add 3 CNAMES to my Cloudflare DNS. Everything successfully installed without any issues from Cloudflare. After speaking with Support, I was told that I might need to retry the whitelabel wizard with automatic security off. Going through this wizard should give 2 txt's and one MX (mail exchanger) record instead of 3 CNAMES.
"Automating security allows the system to redirect ISPs to SendGrid to check DNS records that follow strict security protocols and are custom to your account. Due to a character limit on TXT records, we are only able to create a custom SPF (sender policy framework) record for users with up to 11 IP addresses. This will not affect deliverability. You would have to go through the whitelabel process again."
If you have experience in this type of issue, please let me know what you think.
This is one method the I recommended.
“white-label the domains again but this time completing it with automatic security turned off. Going through this wizard should give 2 txt's and one MX record instead of 3 CNAMES.”
"Automating security allows the system to redirect ISPs to SendGrid to check DNS records that follow strict security protocols and are custom to your account.
Due to a character limit on TXT records, we are only able to create a custom SPF record for users with up to 11 IP addresses. This will not affect deliverability. You would have to go through the white-label process again."
Thanks, I hope you can resolve this.
I can't understand your question.
SPF is kind of TXT record, it can help receiver know email comes from right ip address.
Whitelabeled Domains help receiver know email really comes from the right server.
Sendgrid need a subdomain and two well-know subdomain to verify your identity.

can not access email via gmail since using cloudflare

in cloudflare
I set
MX mydomain.com mail handled by mail.mydomain.com with priority 10 Automatic
in gmail, I set pop server
mail.mydomain.com port 110
but it reports error
There was a problem connecting to mail.mydomain.com
your comment welcome
It sounds like you don't have the proper mail and MX records configured for the domain. Please open a support ticket & CloudFlare support can review your zone file. Please be sure to include the mail records your provider wants you to have so we can compare it against your current zone file.

SPF and DNS records host domain server

I am setting up a server to host some websites.
FQDN server = svr01.server.net (fictional domain name)
IP: 150.150.150.xx
DNS settings server.net domain:
A svr01.server.net 150.150.150.xx
A svr02.server.net 150.150.151.xx
MX-10 server.net [ip provider]
MX-20 server.net [ip provider]
website domains: domain-a.com, domain-b.com, domain-c.com
I have a second server on the server.net domain: svr02.server.net. On that server I will also host domains. This server has another IP: 150.150.151.xx and a FQDN svr02.server.net
I did some test with mxtoolbox for svr01.server.net and svr02.server.net and there it gives a warning that there is no spf record.
When I check a working Strato VPS server hxxxx.stratoserver.net it gives this TXT record:
v=spf1 ip4:81.169.xxx.0/24 ip4:81.169.xxx.0/24 ~all
When I make a virtual server for domain-a.com and check the neccessary dns settings they look like this:
domain-a.com. A 150.150.150.xx
mail.domain-a.com. A 150.150.150.xx
domain-a.com. MX 5 mail.domain-a.com.
domain-a.com. SPF v=spf1 a mx a:domain-a.com ip:150.150.150.xx ?all
So actually this last SPF record say that all mail send from 150.150.150.xx is valid for the domain domain-a.com.
These are my questinons:
Do I need to set a spf record for server.net?
If the answer is yes, how does this spf record look? Something like this maybe:
server.net. IN TXT "v=spf1 ip4:150.150.150.xx ip4:150.150.151.xx ~all". Maybe in the future one or some of these domains can get a different IP for SSL. So then I have to add more ip's. How can I avoid that the list will be to long?
I didn't set an A-record for server.net. Is this correct? When I check this Strato server (hxxxx.stratoserver.net) the domain stratoserver.net also doesn't have an A-record. Only the subdomains hxxxx.stratoserver.net.
I don't want to send mail from server.net, only from the domains on that server. So thats why I keep the MX-records default, so pointing to my domain hosting company. Is this correct?
You don't need an SPF record. The same way you don't need DKIM. But it's recommended, it's a way of proving your mail isn't fake and stopping others from using your domain name to send spam (spoofing).
"Spoofers can commit mail fraud by sending mail from what appear to be trusted addresses in order to gain sensitive information."
This also reduced the likelihood your emails are flagged as spam on some systems where this reduces your spam rating slightly.
The spf record is basically a list of where the mail should come from.
If you get more IPs that you send mail from then yes, you should add them, I've seen some very long SPF records. This is the SPF for one of out domains set up by our mail provider:
v=spf1 a mx ptr ptr:46.242.123.222 ptr:146.222.202.226 mx:domain.co.uk.inbound10.emea.mxlogic.net mx:domain.co.uk.inbound10.emea.mxlogicmx.net ip4:84.2.91.221 ip4:181.118.168.198 ip4:81.178.68.129 include:domain.co.uk include:mxlogic.net mx:mail.domain.co.uk ~all
You should make sure your hosting providers PTR for your IPs is set to the host names of your servers and then add the hostname of the servers to the SPF.
http://en.wikipedia.org/wiki/Sender_Policy_Framework
http://help.mandrill.com/entries/21751322-What-are-SPF-and-DKIM-and-do-I-need-to-set-them-up-
One of the better SPF generators (not just for MS Exchange servers): https://www.unlocktheinbox.com/senderid-wizard/

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