How to Find Which Email Provider a Domain Uses (MX Lookup Explained)
Tell whether a domain uses Google Workspace, Microsoft 365, Zoho, a web host or a forwarding service from its MX records, plus the SPF and DKIM clues.
3 min read
DNS & Setup
MX, SPF, DKIM, DMARC, and provider-specific walkthroughs.
Showing 1–24 of 42
What Are Nameservers? How to Tell Where Your DNS Is Managed
Nameservers answer DNS questions for your domain. Learn what nameservers are, how to find yours, and how to tell which panel controls your email records.
4 min read
What Is a CNAME Record and When Does Email Setup Use One?
A CNAME record makes one hostname an alias of another. Learn when email setup uses a CNAME record and why you can never put one on the root domain.
4 min read
What Is a DKIM Selector? selector._domainkey Explained
A DKIM selector is the label that tells receivers where in DNS to find your signing key. Learn how selector._domainkey works and why DKIM keys rotate.
3 min read
What Is a PTR Record? Reverse DNS for Mail Servers Explained
A PTR record maps an IP address back to a hostname. Learn what a PTR or reverse DNS record is, why receiving mail servers check it, and how to look one up.
4 min read
What Is a TXT Record and Why Does Email Depend on It?
A TXT record stores text in DNS, and email relies on it for SPF, DKIM, DMARC and verification. Learn what a TXT record is and how to add one correctly.
3 min read
What Is an Email Subdomain and When Should You Send From One?
An email subdomain like notify. or news.yourdomain.com is a separate sending identity with its own DNS records. Learn when to use one and how DMARC sees it.
3 min read
What Is an MX Record? Definition, Example and How to Check
An MX record tells the internet which server receives email for your domain. Learn what an MX record is, see an example value, and check yours in one minute.
4 min read
What Is an SPF Record? How to Read Every Mechanism
An SPF record is a DNS TXT entry listing which servers may send email for your domain. Learn what each part means: v=spf1, mx, a, include, ip4 and ~all vs -all.
4 min read
What Is BIMI and Is It Worth It for a Small Business?
BIMI shows your logo beside your emails in supporting inboxes once DMARC is enforced. Learn the BIMI record, the VMC cost, and whether you need it.
4 min read
What Is DANE for Email? TLSA Records and Real-World Adoption
DANE for email uses DNSSEC-signed TLSA records to pin your mail server certificate. Learn what DANE is, how it compares to MTA-STS, and how widely it is used.
4 min read
What Is DMARC Alignment? Relaxed vs Strict, SPF vs DKIM
DMARC alignment means the domain that passed SPF or DKIM matches the visible From domain. Learn relaxed vs strict mode and how to check alignment.
3 min read
What Is DNS TTL and How Does It Affect Email Changes?
DNS TTL is how many seconds resolvers may cache a record. Learn what TTL means for MX and SPF changes, which value to set, and how to switch mail hosts faster.
3 min read
What Is MTA-STS and TLS-RPT? Opportunistic vs Enforced TLS
MTA-STS lets your domain require encrypted delivery and TLS-RPT reports failures. Learn what MTA-STS and TLS-RPT are, the DNS records, and if you need them.
4 min read
Dynadot DNS for Business Email: MX, SPF, DKIM and DMARC
Add the four email DNS records on a Dynadot domain: switching to Dynadot DNS, the Domain Record and Subdomain Record sections, Distance, and verification.
3 min read
Gandi DNS for Business Email: Replace the Pre-set Mail Records
Add the four email DNS records on a Gandi domain: the LiveDNS page, deleting the default spool and fb MX records, editing the pre-set SPF, and verification.
3 min read
Hetzner DNS for Business Email: Zone, Nameservers and the Four Records
Add the four email DNS records in the Hetzner DNS Console: creating the zone, pointing the registrar at Hetzner nameservers, the record form, and verification.
4 min read
HostGator (cPanel) DNS for Business Email: Zone Editor and Email Routing
Add the four email DNS records on a HostGator cPanel account: the Zone Editor, the Email Routing setting that must be Remote Mail Exchanger, and verification.
4 min read
Hover DNS for Business Email: MX, SPF, DKIM and DMARC
Add the four email DNS records on a Hover domain: cancelling Hover mail and forwards first so their MX records stop coming back, the DNS tab, and verification.
3 min read
Name.com DNS for Business Email: MX, SPF, DKIM and DMARC
Add the four email DNS records on a Name.com domain: the DNS Records page, how the Host field works, removing forwarding records, and how to verify.
3 min read
OVHcloud DNS for Business Email: MX, SPF, DKIM and DMARC
Add the four email DNS records in the OVHcloud panel: the DNS Zone tab, the pre-set OVH mail records to remove, the existing SPF to edit, and how to verify.
3 min read
Porkbun DNS for Business Email: MX, SPF, DKIM and DMARC
Add the four email DNS records on a Porkbun domain: where the DNS editor is, how the Host field works, the forwarding records to remove, and how to verify.
3 min read
Bluehost DNS Email Migration: Switch to OquMail Without Downtime
Lower TTL, parallel inboxes, and MX cutover strategy for Bluehost-hosted domains moving to modern business email.
1 min read
Connect OquMail to Cloudflare DNS (One-Click OAuth Guide)
Set up business email on a Cloudflare-managed domain — manual DNS records or OAuth connect, verification, and troubleshooting proxy issues.
1 min read
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