(DKIM, SPF, DMARC, MX) How and what should I set for DNS for the domains to send/receive properly?

1) How do I set up an MX record?

Setting up an MX record at your domain registrar/DNS provider (for your domain name) is a very simple process that can be done in under a minute!

General Instructions (Primary MX)

• Host / Domain → @ / Blank / Domain name
• Mailserver / MX address / Value → mx.mailbux.com
• Record type → MX
• Priority / Preference → 1
• TTL → 1800 (in seconds)

*Make sure to remove your old host’s MX records (if any).

MX records (overview, these records should be set up in your domain DNS records):

2) How do I set up an SPF record?

Setting up an SPF record at your domain registrar/DNS provider (for your domain name) is a very simple process that can be done in under a minute!

General Instructions

• Host / Domain → @ / Blank / Domain name
• TXT value / URL → v=spf1 include:mailbux.com -all
• Record type → TXT
• TTL → 1800 (in seconds)

*If you need to authorize multiple servers/services (Mailcheap/third-party), combine everything into 1 SPF record. You may contact support for help with this.

3) How do I set up a DKIM record?

Setting up a DKIM record at your domain registrar/DNS provider (for your domain name) is a very simple process that can be done in under a minute!

DKIM is unique to each domain. Once logged in to Mail Portal, from the menu bar > select Domains > from the list of Actions > Add your domain > Verify DNS. Please wait for DKIM key to be verified.

General Instructions

• Host / Domain → default._domainkey / default._domainkey.yourdomain.com
• TXT value / URL → v=DKIM1; k=rsa; p=MIGfM...long hash...DAQAB (Use your own key admin dashboard, once you added domain you can generate a DKIM key)
• Record type → TXT
• TTL → 1800 (in seconds)

Specific Instructions

Same as SPF record since SPF, DKIM & DMARC are all entered as TXT records in your DNS manager.

4) DMARC

What is a DMARC record?

A DMARC record is actually a specific type of TXT record used for email authentication and empowers SPF and DKIM by stating a clear policy which should be used about both the aforementioned tools.

How do I setup a DMARC record?

Setting up a DMARC record at your domain registrar/DNS provider (for your domain name) is a very simple process that can be done in under a minute!

General Instructions

• Host / Domain → _dmarc / _dmarc.yourdomain.com
• TXT value / URL → v=DMARC1;p=reject;rua=mailto:[email protected]
• Record type → TXT
• TTL → 1800 (in seconds)

These 4 records are mandatory to make the emails working properly. take 5 minutes to add.