Email DNS
Business Email DNS Configuration
MX, SPF, DKIM, DMARC and other DNS record setup for business email so messages deliver reliably and authenticate correctly.
Independent service provider
Infinity Techiez is an independent IT services provider and is not affiliated with, endorsed by or sponsored by any email, hosting or technology platform vendor referenced on this page. All trademarks and brand names are the property of their respective owners.
What this service covers
Email does not work without the right DNS records. MX records tell the world where to deliver your mail. SPF, DKIM and DMARC records tell receiving servers that your messages are legitimate. TXT records handle verification for third-party services. When these records are missing or wrong, email fails silently or lands in spam.
Infinity Techiez provides independent DNS configuration services for business email. We are not a DNS provider or domain registrar; we help you understand and configure the records needed for reliable email delivery and authentication.
- Service category
- Business Email
- Best suited for
- Businesses setting up email for the first time
- Core service
- Domains & DNS
What we help with
Practical assistance for the areas that matter most to your business.
MX record setup
Configure MX records to direct incoming email to the correct servers for your platform.
SPF, DKIM and DMARC records
Set up authentication records so your messages are trusted and spoofing is harder.
TXT and verification records
Add TXT records needed for domain verification, third-party services and email security tools.
A and CNAME records
Configure records for webmail portals, autodiscover and other email-related services.
DNS troubleshooting
Diagnose why email is not delivering, bouncing or failing authentication checks.
Propagation planning
Plan record changes with appropriate TTL values to minimize delay and enable rollback if needed.
Everyday email tasks we handle
The most common email jobs businesses ask us about — from provider migrations to fixing delivery problems.
Email migration between providers
Move mailboxes between providers — for example comcast.net to Yahoo Mail, or ISP email to a business platform — keeping messages, folders and contacts intact.
Bulk email deletion & cleanup
Remove large volumes of old or unwanted messages safely, free up mailbox storage and organize folders without losing anything important.
IMAP / POP server setup
Configure IMAP or POP incoming mail settings correctly so email syncs reliably across webmail, desktop and mobile.
Email client setup
Set up Outlook, Apple Mail, Thunderbird, mobile mail apps and webmail with the right server, port and security options.
Email not receiving
Diagnose why messages are not arriving — DNS or MX record problems, full mailboxes, filters, blocked senders or server-side issues.
Email not sending
Fix outgoing mail failures — SMTP settings, authentication errors, port blocks, sending limits and reputation problems.
Domain MX record setup
Create or correct MX, SPF, DKIM and DMARC records so mail for your domain routes to the right servers and passes authentication checks.
Email forwarding setup
Configure forwarding, aliases and catch-all addresses so messages reach the right mailbox — and review forwarding before migrations.
Key benefits
What you can expect from this service.
Core DNS records for email
MX records control where email is delivered. SPF records specify which servers can send mail for your domain. DKIM adds a cryptographic signature to outgoing messages. DMARC tells receiving servers how to handle messages that fail SPF or DKIM checks.
TXT records are also used for domain verification with email providers, security tools and other services. A and CNAME records may be needed for webmail portals, autodiscover endpoints and mobile device management.
DNS propagation and timing
DNS changes do not take effect instantly. TTL (time to live) values determine how long other servers cache old records. Lowering TTL before making changes can reduce the window where old and new records coexist.
We plan DNS updates with timing in mind, scheduling changes during low-traffic periods and verifying propagation from multiple locations before declaring the work complete.
Common business scenarios
Situations where this service is most useful.
Email not delivering
Messages are bouncing, delayed or landing in spam because DNS records are missing or incorrect.
Moving to a new email platform
A business is changing providers and needs DNS records updated to point to the new service.
Adding authentication
A company wants to add SPF, DKIM and DMARC to improve deliverability and reduce spoofing risk.
Technical considerations
Details that affect reliability, timing and deliverability.
Lower TTL values before making changes so old records expire faster and rollback is easier.
If you use multiple email services or third-party tools, SPF records must include all authorized senders.
Start with a monitoring policy before enforcing rejection to avoid blocking legitimate email.
Consider using subdomains for different services or environments to simplify DNS management.
Security considerations
Measures that help protect accounts, data and domain reputation.
Restrict who can modify DNS records at your registrar or DNS provider and enable MFA.
Ensure all legitimate senders are covered and unauthorized senders are excluded.
Configure DMARC reports so you can see how your domain is being used and by whom.
How we work
A clear, transparent approach from initial review to handover.
Discover
Identify your DNS provider, domain registrar and current email records.
Inspect
Review existing MX, TXT, SPF, DKIM and DMARC records for accuracy.
Plan
Map the required records, TTL values and update sequence for your email platform.
Update
Make DNS changes with careful timing and document what was changed.
Validate
Test email delivery, authentication and external lookups to confirm the setup works.
Document
Record the final configuration, provider contacts and renewal dates for future reference.
Who this is for
Organizations and situations where this service is most useful.
Related services
Core Infinity Techiez services and related pages.
Frequently asked questions
Practical answers about this service.
Need email DNS configured correctly?
Tell us about your current setup and we can review or configure the DNS records needed for reliable business email.