According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), Microsoft Dynamics is the SaaS sender for 28 domains — 0.00% of 617,702 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
Microsoft Dynamics is a cloud-based customer relationship management (CRM) platform operated by Microsoft. It enables organisations to manage sales pipelines, customer service, and marketing automation—including transactional and marketing email—on behalf of their own domains.
Dynamics sits predominantly in the middle and smaller end of the market rather than amongst the world's largest brands, and is concentrated in the .com registry. Its presence typically emerges when organisations running Microsoft 365 tenancies adopt Dynamics to centralise customer communications. For email receivers and senders, this distribution pattern means Dynamics ranks as a significant third-party sending platform, with reputation signals tied both to individual customer domains and to Dynamics' infrastructure itself.
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 1 | 3.6% |
| Top 100,000 | 3 | 10.7% |
| Top 1,000,000 | 23 | 82.1% |
| Unranked | 1 | 3.6% |
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 24 | 85.7% | |
| .org | 2 | 7.1% | |
| .co.nz | 1 | 3.6% | |
| .co.uk | 1 | 3.6% |
Cross-tabulated from the same daily snapshot — the other email services seen on the same 28 domains.
| Type | Service | Domains | Share of Microsoft Dynamics users |
|---|---|---|---|
| Mailbox | Microsoft 365 | 16 | 57.1% |
| Mailbox | Google Workspace | 3 | 10.7% |
| Mailbox | Unknown / Other | 2 | 7.1% |
| Mailbox | Barracuda | 2 | 7.1% |
| Mailbox | Self-Hosted | 2 | 7.1% |
| Mailbox | Mimecast | 1 | 3.6% |
When an organisation uses Dynamics to send email from its own domain, it must publish an SPF include mechanism pointing to Dynamics' sending infrastructure. This creates a direct link between the customer domain's reputation and Dynamics' IP blocks in the eyes of receiving mail servers. A single Dynamics-hosted domain's poor sending practices can thus degrade authentication and deliverability signals for others sharing that infrastructure—a reputation pooling effect common to all multi-tenant sending platforms.
See the full Microsoft Dynamics data page (KPI cards, trend, sample domains) →
Not unless you are already using Dynamics to send mail on your behalf. However, if you operate a mail receiver or security filter, understanding Dynamics' presence in your traffic helps you model third-party sender ecosystems and set appropriate authentication and filtering thresholds.
28 domains in the Tranco top-1M use Microsoft Dynamics as their SaaS sender as of July 13, 2026 (0.00% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
Microsoft Dynamics accounts for 0.00% of SPF-publishing domains in the top 1M. Whether you should seed a test mailbox there depends on how much of your audience it represents — the co-usage table above shows the services it appears alongside most.
Microsoft Dynamics's largest TLD is .com (85.7% of its domains); it appears across 4 TLDs in total.