SPF, DKIM & DMARC Services

What SBN provides

Who this is for: Businesses sending email through Microsoft 365, website forms, newsletters, invoicing systems, or other third-party services.

An incomplete sender inventory or an overly strict DMARC policy can disrupt legitimate mail. Authentication needs to cover each sending service, not just your main mailbox provider.

• Inventory legitimate senders and review the domain’s existing DNS records.
• Check SPF evaluation limits and configure DKIM signing where each provider supports it.
• Review DMARC alignment and reporting before recommending quarantine or reject policies.
• Test representative messages and document DNS ownership, reporting responsibilities, and future sender changes.

SBN Solutions serves Virginia Beach, Norfolk, Chesapeake, Portsmouth, Suffolk, Hampton, Newport News, and the wider Hampton Roads area. Contact us to discuss the right scope and whether remote or onsite support fits your needs.