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Managed DMARC and Email Deliverability Monitoring

Managed DMARC and Email Deliverability Monitoring is the monthly operations layer for domains that already publish SPF, DKIM, and DMARC: IT Partner reads your DMARC aggregate reports every month, authenticates the new senders that keep appearing — the CRM someone connected, the ticketing tool, the new marketing platform — holds each domain's policy at quarantine or reject without blocking legitimate mail, triages deliverability incidents against Google, Yahoo, and Microsoft's current bulk-sender requirements, watches your MTA-STS and TLS-RPT state, and closes each month with a per-domain report. The service costs $95 per monitored domain per month with no long-term contract: stop any month. It is the continuation of IT Partner's DMARC, DKIM, and SPF Email Authentication Implementation — or a takeover of records someone else published — and it never promises inbox placement, because the receiving mailbox providers decide that, not senders.

Timeline 30 daysService owner Roman SotnikMicrosoft 365Exchange Online

What this engagement is

Reaching p=reject is the end of a project and the start of a chore. DMARC aggregate reports keep arriving every day from every major mailbox provider — Exchange Online Protection has sent them since 2023 — and they only help if someone reads them. Meanwhile the organization keeps changing: marketing adopts a new email platform, sales connects a CRM, support turns on a ticketing tool, finance's billing system starts sending invoices, and each one sends mail as your domain without asking whether it is authorized to. Under an enforced policy, an unauthenticated sender does not get a warning — its mail is quarantined or rejected by every receiver on the internet until someone notices the complaints, reads the reports, and fixes SPF or DKIM. In most organizations nobody owns that job. This service is the owner. Each month, IT Partner reads the aggregate (RUA) data for every monitored domain and sorts every source into three lists: known senders passing alignment, known senders failing it, and sources nobody has identified. Failing and unknown sources are investigated — a platform signing with its own domain instead of yours, an SPF include that fell out, a forwarding pattern, or an attacker spoofing you — and resolved or documented. New legitimate senders raised through the agreed intake are authenticated properly: DKIM signing configured with the platform, SPF updated without breaching the 10-DNS-lookup limit, and alignment verified in the next report before anyone relies on it for production mail. Policy stays at the enforcement level you chose; where a domain must temporarily relax, that is a documented decision with an owner and a return date, not a silent downgrade. When a deliverability incident lands — Gmail bouncing the newsletter, Outlook.com rejecting invoices with a 550 5.7.15 error, mail landing in junk — we triage it against the providers' published requirements: authentication and alignment first, then the non-authentication signals they also enforce, such as spam-complaint rate and one-click unsubscribe, with a written finding that says which side of the line the problem sits on. We also watch MTA-STS and TLS-RPT for the domains that have them, so an expired policy or a certificate change does not quietly switch off transport protection. The boundaries are priced honestly. The one-time authentication project — sending-service inventory, record design, DKIM enablement across every existing sender, and the ramp to enforcement — is IT Partner's DMARC, DKIM, and SPF Email Authentication Implementation, and it comes first; this service assumes the domains it monitors are already there, or takes over records already published and brings them up to standard in the first cycle. The mailing platforms themselves — lists, templates, campaign settings, unsubscribe mechanics, sender reputation — remain yours to run. Inbound protection for your own users is separate work under Microsoft Defender for Office 365 Implementation and Additional Spam and Phishing Protection. And nobody can promise inbox placement: authentication is the floor the mailbox providers require, and what they do above that floor is their decision, shaped by your content, your lists, and your complaint rates.

Success criteria

01Every monitored domain's aggregate reports are read each month, every source is classified as aligned, failing, or unknown, and every failing or unknown source is investigated to a documented outcome.
02New sending services raised through the agreed intake are authenticated — DKIM configured, SPF updated within the 10-DNS-lookup limit, alignment confirmed in report data — before they are relied on for production mail.
03Each monitored domain holds its agreed enforcement policy (quarantine or reject); any temporary relaxation is documented with a reason, an owner, and a return date.
04Deliverability incidents raised through the intake receive first response within IT Partner's published SLA of 1 business hour and a written triage that names the cause — authentication, reputation or content, or a receiver-side issue — and the fix.
05MTA-STS and TLS-RPT state for domains that have them is checked each month, with policy expiry, certificate changes, and reporting problems flagged and fixed.
06A monthly per-domain report is delivered on schedule — sources, alignment rates, policy state, incidents, actions taken, and recommendations — specific enough to hand to an auditor, a cyber-insurance questionnaire, or a marketing lead without rework.

What you receive

Onboarding baseline (first month): per-domain review of the published SPF, DKIM, DMARC, MTA-STS, and TLS-RPT records; the sending-service inventory — carried over from your implementation runbook, or rebuilt from report data if we did not do the implementation; aggregate-report routing to the reporting destination we operate for the service; and a written statement of anything already broken, with light fixes absorbed into the first cycle and structural gaps routed to the implementation project.
Monthly DMARC aggregate-report review per domain: every source classified, failing and unknown sources investigated, spoofing attempts identified and reported.
New-sender authentication through the agreed intake, within the monthly allowance defined in your service order: DKIM enablement with the platform, SPF changes kept within the 10-DNS-lookup limit (flattening maintained where you have it), DNS changes applied or handed to your DNS owner ready to paste, and alignment verified in the following report.
Policy maintenance: enforcement level held per domain, subdomain policies kept consistent, parked and non-sending domains kept locked down, and every policy change recorded with its reason.
Deliverability incident triage against Google, Yahoo, and Microsoft's published sender requirements — authentication and alignment checks, message-header analysis, postmaster-tool readings where you have granted access — with a written finding that names the cause and the fix, including when the cause is reputation, content, or list quality rather than authentication.
MTA-STS and TLS-RPT watch for domains that have them: policy validity and expiry, certificate changes, and review of the TLS reports from providers that send them.
A monthly per-domain report: sources and volumes, alignment and pass rates, policy state, incidents and actions, and recommendations — formatted for auditors, cyber-insurance questionnaires, and marketing leads alike.
A standing monthly review (written, or a short call by agreement) to walk through the report, approve pending sender changes, and decide on anything that has outgrown the monthly scope.

How the work unfolds

1. Onboarding and baseline (first monthly cycle)

Access is established under least-privilege, time-bound GDAP roles you approve. We review every monitored domain's published records, confirm or rebuild the sending-service inventory, point aggregate reporting at the destination we operate, and agree the intake, the monthly new-sender allowance, and report recipients in the service order. If we did your implementation, this is largely a handover to ourselves; if someone else did, the first report reading tells us how much the takeover has to fix.

2. Monthly cycle — read the reports

Each month we read the aggregate data per domain, classify every source, and investigate the failing and unknown ones: misconfigured platforms, dropped SPF includes, forwarding, and spoofing. Findings become fixes, vendor tickets, or documented decisions — never a shrug.

3. Monthly cycle — authenticate new senders and hold policy

New platforms raised through the intake are authenticated before they go live: DKIM with the vendor, SPF within the lookup limit, alignment verified in the next report. Each domain stays at its agreed policy; any relaxation is documented with an owner and a return date, and parked domains stay locked down.

4. Incidents — triage through the intake

When mail bounces or lands in junk, your contact raises it through the agreed intake. First response follows IT Partner's published SLA of 1 business hour. We read headers and report data, check the domain against the providers' published requirements, and deliver a written finding: what broke, whose side it is on, and what fixes it — including when the honest answer is reputation, not authentication.

5. Monthly report and review

The month closes with the per-domain report and a short review: what the reports showed, what changed, what we recommend next, and a plain statement when something — a sender migration, MTA-STS rollout, a reputation-repair program — has outgrown the monthly scope and deserves a separately quoted project.

Prerequisites

Domains that already publish SPF, DKIM, and DMARC — ideally at quarantine or reject after IT Partner's DMARC, DKIM, and SPF Email Authentication Implementation, or an equivalent completed elsewhere. Domains still at p=none with no sending inventory are an implementation project first; we will say so at onboarding rather than monitor a policy that protects nothing.
Ability to route DMARC aggregate reports (the rua address in each domain's DMARC record) to the reporting destination we operate for the service — a one-line DNS change per domain, made during onboarding.
Access to make DNS changes for each monitored domain, or a named DNS owner who applies our change requests within one business day.
Administrative access to the Microsoft 365 tenant for DKIM, connector, and message-trace work — granted through least-privilege, time-bound GDAP roles you approve, never standing global admin.
A responsive owner for each third-party sending platform (marketing, CRM, helpdesk, billing) so DKIM can be enabled there when a new sender is onboarded — we configure what we can reach and coordinate the rest.
A named contact who raises new senders and incidents through the agreed intake and can approve policy decisions, and a service order recording the monitored domains, the monthly new-sender allowance, and report recipients.

Who does what

IT Partner

  • Operate the report collection and read every monitored domain's aggregate data each month.
  • Investigate failing and unknown sources and resolve or document each one.
  • Authenticate new senders raised through the intake within the agreed allowance, keeping SPF within the lookup limit.
  • Hold each domain at its agreed policy and record every change with its reason.
  • Triage deliverability incidents within the published SLA and deliver a written finding.
  • Watch MTA-STS and TLS-RPT state for domains that have them.
  • Deliver the monthly per-domain report, and name honestly — and quote separately — anything that exceeds the monthly scope.

Your team

  • Tell us before a new platform starts sending as your domain — the intake exists so authentication happens first, not after the bounces.
  • Apply DNS changes within one business day, or give us access to do so.
  • Own the mailing platforms: lists, content, unsubscribe mechanics, complaint rates, and the vendor relationships behind them.
  • Approve policy decisions and any temporary relaxation, and decide the final policy per domain.
  • Maintain Microsoft 365 licensing and any third-party platform subscriptions.
  • Review the monthly report and act on recommendations that need a project.

What's not included

The one-time authentication project — sending-service inventory from scratch, SPF design and flattening, DKIM enablement across every existing sender, and the ramp from p=none to enforcement. That is DMARC, DKIM, and SPF Email Authentication Implementation, and it comes before this service.
Management of the mailing platforms themselves — campaign setup, list hygiene, templates, unsubscribe mechanics, suppression lists, complaint handling, and platform configuration beyond the DKIM and domain-verification settings that authentication needs.
Sender-reputation repair and deliverability consulting beyond authentication: IP or domain warm-up, content and spam-rate remediation programs, mailbox-provider mitigation requests, and list-quality work. Our triage names the problem; fixing a reputation problem is separate, quoted work.
MTA-STS and TLS-RPT implementation for domains that do not have them yet — a small, separately quoted project (also offered as an add-on to the implementation service). This service watches what is already published.
BIMI and Verified Mark Certificates — a separate project with its own certificate cost and vendor process, available once a domain is at enforcement.
Inbound protection for your own users — anti-spam, anti-phishing, and anti-spoofing policies belong to Microsoft Defender for Office 365 Implementation and Additional Spam and Phishing Protection. This service covers the outbound side: proving your mail is yours.
Project-scale sender changes, quoted separately in writing before work begins: moving a sending platform onto a dedicated subdomain, re-engineering applications or devices that can only send unauthenticated mail, and onboarding a wave of new senders beyond the monthly allowance in your service order.
Domains outside the agreed list — each monitored domain is a billing unit; adding one is a service-order change, not a silent inclusion.
Email migrations, tenant configuration beyond DKIM and related connectors, and Microsoft or third-party subscription costs — billed by the vendor, never marked up into this fee.

Limitations & technical notes

!No inbox-placement guarantee, ever. SPF, DKIM, and DMARC are the floor that Google, Yahoo, and Microsoft require; above it, placement depends on sender reputation, complaint rates, content, and list quality, and the receiving provider decides. We keep authentication clean and tell you plainly when a problem is not an authentication problem.
!Aggregate reports arrive on the providers' schedule — typically daily — and describe sources statistically, without message content. Forensic (ruf) reports are not relied on; most large providers no longer send them. Some receivers send no reports at all, so the picture is comprehensive for the major mailbox providers and partial beyond them.
!The monthly new-sender allowance is defined in your service order at onboarding, sized to how often your organization adds platforms. Senders beyond the allowance in a given month are queued to the next cycle or quoted as a wave, and we say which at intake rather than stretching the fee silently.
!Authenticating a new sender depends on the platform: some services cannot sign DKIM as your domain, or sign only with their own, which fails alignment. We document the options — subdomain delegation, vendor ticket, sender migration, or accepting the loss at enforcement — and implement the one you choose within scope.
!Provider requirements move. Google and Yahoo's bulk-sender rules (in force since February 2024) and Microsoft's high-volume sender enforcement for Outlook.com, Hotmail, and Live mailboxes (since May 2025) have tightened repeatedly, and the postmaster tooling changes with them — Google's Postmaster Tools moved to a compliance-status model, and Microsoft has reworked its SNDS sender-data service. Tracking that motion is part of this service's value; the requirements themselves are always the providers' to set.
!Client-side DNS turnaround directly affects how fast a new sender is authenticated or an incident is resolved — which is why one-business-day DNS changes are a listed prerequisite.
!Support response follows IT Partner's published SLA — first response within 1 business hour — with monthly support statistics published openly since December 2023, including the months we missed.
!Billing is per monitored domain per month for the domains in the agreed scope; domains are added or removed by service-order change, in both directions.

Frequently asked questions

What does Managed DMARC and Email Deliverability Monitoring include each month?

A full cycle per monitored domain: reading the DMARC aggregate reports and classifying every source, investigating failing and unknown senders, authenticating new platforms raised through the intake (DKIM, SPF within the lookup limit, alignment verified), holding the domain at its agreed policy, triaging deliverability incidents against the providers' published requirements, watching MTA-STS and TLS-RPT where you have them, and delivering a per-domain report with a short review. It costs $95 per monitored domain per month with no long-term commitment.

Who is this service for?

Two groups. Organizations that completed DMARC implementation — with us or with anyone — and have nobody reading the reports since. And marketing-heavy senders whose mail volume puts them squarely under Google, Yahoo, and Microsoft's bulk-sender rules, where a single unauthenticated platform or a policy that drifts can cost a campaign. If your DMARC record has a rua address and nobody has opened a report in months, this is the missing role.

We finished the implementation project with you and reached p=reject. Why would we still need this?

Because reject is a policy, not a state of nature. The implementation authenticated every sender that existed on handoff day; the runbook we left you covers adding the next one safely — if someone remembers to use it. In practice, new platforms get connected by well-meaning teams, vendors change their infrastructure, and each change silently fails alignment until the reports are read. This service is the discipline of reading them every month and acting, so the enforcement you paid for keeps protecting you instead of quietly blocking your own mail.

Can you take over domains that someone else set up?

Yes — that is what the onboarding baseline is for. We review the published records, rebuild the sending-service inventory from report data if no runbook exists, and flag in writing what is already broken. Ordinary cleanup is absorbed into the first cycle. If the baseline shows a domain still at p=none with unidentified senders and no inventory, that is an implementation project — we will say so plainly and route you to it rather than charge a monthly fee to watch a policy that protects nothing.

What happens when marketing connects a new email platform?

Ideally, they tell us first through the intake — then we enable DKIM with the platform, add it to SPF without breaching the 10-DNS-lookup limit, publish the DNS changes (or hand them to your DNS owner ready to paste), and verify alignment in the next report before the first campaign goes out. If they do not tell us first, the reports tell us within a day or two: the platform shows up as a failing source, and the same work happens — just after some mail has already been quarantined. The monthly allowance in your service order covers a defined number of these; a wave of new platforms is quoted as a small project.

Gmail is bouncing our newsletter and Outlook.com rejects our invoices. Can you fix it?

We can find out why, quickly, and fix it if it is an authentication problem — which it often is: a platform signing with the wrong domain, an SPF record over the lookup limit, alignment failing after a vendor change. Microsoft rejects non-compliant high-volume mail to Outlook.com, Hotmail, and Live mailboxes outright with a 550 5.7.15 error, and Google applies its bulk-sender rules similarly. If the finding is that authentication passes and the problem is reputation, spam-complaint rate, list quality, or missing one-click unsubscribe, we say so in writing and tell you what to change on the platform side — that repair is yours or a separately quoted program, not something we pretend the monthly fee covers.

Do you guarantee inbox placement?

No, and we would distrust anyone who does. Mailbox providers decide placement using signals nobody outside them fully sees: authentication, alignment, reputation history, complaint rates, engagement, content. What we guarantee is the part that is knowable and fixable — that your domains stay properly authenticated, aligned, and enforced, and that every incident gets a written, honest finding. Authentication is the floor the providers demand; we keep you standing firmly on it.

What is in the monthly report?

Per domain: every sending source seen and its volume, SPF and DKIM pass and alignment rates, unknown and spoofing sources identified, the policy state and any changes with reasons, new senders authenticated, incidents raised and their findings, MTA-STS and TLS-RPT status where applicable, and recommendations. It is written so a cyber-insurance questionnaire, an auditor asking for evidence of email-spoofing controls, and a marketing lead asking why the campaign bounced can all read the same document.

What is the new-sender allowance, and what happens beyond it?

The allowance is the number of new sending services the monthly fee authenticates, agreed in your service order at onboarding and sized to how often you add platforms. It is what makes a flat per-domain price honest. When a month brings more — a marketing reorganization that connects four tools at once — we queue the rest to the next cycle or quote the wave as a small project, and we tell you which at intake.

Do we need to buy a DMARC analytics tool?

Not for this service. Report collection and parsing are provided as part of the service — your DMARC records point their rua address at the reporting destination we operate, and we do the reading. If you already pay for a DMARC analytics platform and want to keep it, we can work from it by agreement; the price does not change either way.

What about MTA-STS and TLS-RPT?

If your domains have them, we watch them: the policy file and its expiry, the certificate behind it, and the TLS reports from providers that send them, so transport encryption does not silently fall back. Exchange Online supports MTA-STS for inbound mail once you publish the policy, and enforces it outbound on its own. If your domains do not have MTA-STS yet, implementing it is a small separately quoted project — worthwhile for organizations that handle sensitive correspondence, and not required by the Google, Yahoo, or Microsoft sender rules.

How is this different from Defender for Office 365 or Additional Spam and Phishing Protection?

Direction. Those services protect your users from other people's mail — inbound filtering, anti-phishing, anti-spoofing, safe links and attachments. This service protects the world from mail pretending to be you, and keeps your legitimate mail deliverable — outbound authentication, enforced and maintained. Most organizations need both; they solve different problems and are deliberately priced apart.

How does billing work, and can we stop?

Monthly, at $95 per monitored domain in the agreed scope, with domains added or removed by a service-order change. There is no long-term contract: stop any month, and all we ask is payment of previously approved invoices. Everything the service produced stays yours — the reports, the inventory, and every record we published. Your DMARC records can point their reports anywhere you like the day after.

How quickly can the service start?

The first monthly cycle is the onboarding: GDAP access, the record review, inventory confirmation, report routing, and the service order. From the second cycle the service is in steady state. If we performed your implementation, onboarding is mostly a handover to ourselves and the inventory already exists; if not, the first report reading sets the pace, and any structural problems are named in writing before we promise anything against them.

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30 days
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