Blackboard email provider statistics and deliverability context
← Email Stats homesaas
According to Live Direct Marketing's daily Tranco top-1M scan (September 24, 2026), Blackboard is the SaaS sender for 376 domains — 0.06% of 637,420 SPF-publishing domains. Its strongest TLD is .edu (38.8% of its domains). Detection: include: mechanisms in the SPF record.
Last updated from the 2026-09-24 DNS snapshot.
What Blackboard represents in this dataset
Blackboard — LMS for higher-ed; course notification email.
Directory category: Saas. The classification comes from include: mechanisms in the SPF record. It describes observed DNS infrastructure, not a commercial relationship and not the placement of any individual message.
What the 2026-09-24 snapshot shows about Blackboard
Across 44 distinct TLDs its top three are .edu (38.8%), .org (18.1%), .net (10.6%) — together 67.6% of the 376 domains, which makes the footprint moderately concentrated, with a recognisable home market. The service most often observed on the same domains is Microsoft 365 (Mailbox, 201 domains, 53.5% of them), followed by Google Workspace (19.9%). Directly comparable by the same detection rule: Shopify, Pardot (Salesforce), CodeTwo Email Signatures 365. Ranking between them reflects what is published in DNS, not delivery quality or volume sent. All figures come from a single daily DNS snapshot (2026-09-24); a domain appears here when its published records match the include: mechanisms in the SPF record rule, which is an infrastructure fact, not a commercial relationship.
Commonly used together with Blackboard
What else the same 376 domains use — cross-tabulated from the same daily snapshot (2026-09-24).
| Type | Service | Domains | Share of Blackboard users |
|---|---|---|---|
| Mailbox | Microsoft 365 | 201 | 53.5% |
| Mailbox | Google Workspace | 75 | 19.9% |
| Mailbox | Barracuda | 20 | 5.3% |
| Mailbox | Self-Hosted | 19 | 5.1% |
| Mailbox | Mimecast | 17 | 4.5% |
| Mailbox | Proofpoint | 17 | 4.5% |
TLD distribution (top 30 of 44)
Frequently asked questions
How many domains use Blackboard?
376 domains in the Tranco top-1M use Blackboard as their SaaS sender as of September 24, 2026, according to Live Direct Marketing's daily DNS scan.
What is Blackboard's market share?
Blackboard holds 0.06% of SPF-publishing domains in the Tranco top-1M (snapshot of 2026-09-24). The number is recomputed every day.
What are the biggest alternatives to Blackboard?
The largest SaaS senders in the same category by Tranco top-1M share are: Shopify, Pardot (Salesforce), CodeTwo Email Signatures 365, KnowBe4, Statuspage (Atlassian) (as of 2026-09-24).
Largest SaaS senders in this category
Shopify (0.84%) · Pardot (Salesforce) (0.75%) · CodeTwo Email Signatures 365 (0.71%) · KnowBe4 (0.54%) · Statuspage (Atlassian) (0.33%) · Trustpilot (0.30%) · Firebase (Google) (0.29%) · Atlassian (Jira/Confluence) (0.28%) · BigCommerce (0.27%) · Lark / Feishu (0.20%)
Domain sample (top 100 by Tranco rank)
Showing 100 of 376 domains.