SPF, DKIM and DMARC configuration
Checking and setting the records that tell receiving servers which services may send email for your domain.
Email Security & DNS Management
Email Security, DNS and SPF, DKIM and DMARC Configuration
Email that is not properly authenticated can land in spam or be spoofed. ItCityHub reviews and configures the DNS records behind your business email, including SPF, DKIM and DMARC, and troubleshoots delivery problems.
What we help with
DNS management
Adding, correcting and cleaning up records at your domain registrar or DNS provider, such as MX, TXT and CNAME records.
Email authentication troubleshooting
Finding why messages fail authentication, go to spam or bounce, and fixing the records involved.
Email security settings
Reviewing sensible sender and spam protection settings in Microsoft 365 or Google Workspace.
What SPF, DKIM and DMARC do
SPF
Lists the servers allowed to send email for your domain.
DKIM
Adds a digital signature to your messages so receivers can check they were not altered.
DMARC
Tells receivers what to do when SPF or DKIM checks fail, and reports on the results.
Common problems we fix
- Your emails go to spam
- Messages are rejected or bounce
- Someone sends email pretending to be your domain
- You switched email providers and mail stopped
- Nobody is sure what the DNS records do
What to know first
- Correct records improve authentication, but cannot guarantee that every message reaches the inbox.
- We need access to your DNS settings; you approve each change and never share passwords with us through the website.
- Registrar fees, mail hosting and licences are not included.
- Our team will reach out to you within 1-2 hours. For ongoing support, response targets and support hours are agreed in writing before work starts.
Pricing
$79 (one-time)
Review of SPF, DKIM and DMARC records for one domain, with configuration of the records you approve (up to 1.5 hours).
Final pricing depends on the scope and complexity of the project. Every quote lists what is included before you approve it.
Frequently asked questions
What is DMARC and do I need it?
DMARC is a policy that tells email receivers how to treat messages that fail SPF or DKIM. Most businesses benefit from it, and some mail providers now expect it from senders.
Will this stop all spam and spoofing?
No. It makes spoofing of your domain harder and helps legitimate mail get delivered, but no setup guarantees inbox placement.
How much does it cost?
Email Security & DNS is $79 one-time for one domain, covering a review and configuration of the records you approve, up to 1.5 hours. Final pricing depends on scope.
Can you fix this without changing our email provider?
Usually yes. The records are changed at your DNS provider and in your existing email platform.
Related services
Microsoft 365 Support
Users, licences, mailboxes, Teams, SharePoint and security.
Google Workspace Support
Users, groups, Gmail, Drive, shared drives and security.
Cybersecurity & Endpoint Management
Endpoint protection, patching, MFA and access control.
Managed IT Services
A monthly plan with agreed scope, hours and response targets.
Need help with Email Security & DNS Management?
Tell us what is happening and how many people you have. Our team will reach out to you within 1-2 hours.