Adestra MessageProvider email provider statistics and deliverability context
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According to Live Direct Marketing's daily Tranco top-1M scan (September 14, 2026), Adestra MessageProvider is the email service provider (ESP) for 206 domains — 0.03% of 637,677 SPF-publishing domains. Its strongest TLD is .com (78.6% of its domains). Detection: include: mechanisms in the SPF record.
Last updated from the 2026-09-14 DNS snapshot.
What Adestra MessageProvider represents in this dataset
Adestra MessageProvider — UK enterprise email infrastructure.
Directory category: Esp. 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 2026-09-14 snapshot shows about Adestra MessageProvider
Across 15 distinct TLDs its top three are .com (78.6%), .org (9.7%), .bank (2.9%) — together 91.3% of the 206 domains, which makes the footprint narrow — three TLDs cover most of it, which is typical of a regional or single-market operator. The service most often observed on the same domains is Microsoft 365 (Mailbox, 65 domains, 31.6% of them), followed by Proofpoint (20.4%). Directly comparable by the same detection rule: Amazon SES, SendGrid (Twilio), Mailgun. Ranking between them reflects what is published in DNS, not delivery quality or volume sent. All figures come from a single daily DNS snapshot (2026-09-14); 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 Adestra MessageProvider
What else the same 206 domains use — cross-tabulated from the same daily snapshot (2026-09-14).
| Type | Service | Domains | Share of Adestra MessageProvider users |
|---|---|---|---|
| Mailbox | Microsoft 365 | 65 | 31.6% |
| Mailbox | Proofpoint | 42 | 20.4% |
| Mailbox | Mimecast | 34 | 16.5% |
| Mailbox | Self-Hosted | 17 | 8.3% |
| Mailbox | Unknown / Other | 14 | 6.8% |
| Mailbox | Cisco IronPort | 9 | 4.4% |
| ESP | Salesforce | 39 | 18.9% |
| ESP | Mimecast | 33 | 16.0% |
| ESP | SendGrid (Twilio) | 28 | 13.6% |
| ESP | Proofpoint | 24 | 11.7% |
TLD distribution (top 15 of 15)
Frequently asked questions
How many domains use Adestra MessageProvider?
206 domains in the Tranco top-1M use Adestra MessageProvider as their email service provider (ESP) as of September 14, 2026, according to Live Direct Marketing's daily DNS scan.
What is Adestra MessageProvider's market share?
Adestra MessageProvider holds 0.03% of SPF-publishing domains in the Tranco top-1M (snapshot of 2026-09-14). The number is recomputed every day.
What are the biggest alternatives to Adestra MessageProvider?
The largest email service provider (ESP)s in the same category by Tranco top-1M share are: Amazon SES, SendGrid (Twilio), Mailgun, Zendesk, Mailchimp (as of 2026-09-14).
Largest email service provider (ESP)s in this category
Amazon SES (6.16%) · SendGrid (Twilio) (4.62%) · Mailgun (4.00%) · Zendesk (3.75%) · Mailchimp (3.57%) · Mandrill (3.24%) · HubSpot (3.11%) · Salesforce (2.54%) · Mailjet (Sinch) (2.12%) · Cloudflare Email Routing (1.95%)
Domain sample (top 100 by Tranco rank)
Showing 100 of 206 domains.