Symantec MTA Routes email provider statistics and deliverability context
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According to Live Direct Marketing's daily Tranco top-1M scan (September 11, 2026), Symantec MTA Routes is the email service provider (ESP) for 201 domains — 0.03% of 631,089 SPF-publishing domains. Its strongest TLD is .com (40.3% of its domains). Detection: include: mechanisms in the SPF record.
Last updated from the 2026-09-11 DNS snapshot.
What Symantec MTA Routes represents in this dataset
Symantec/Broadcom MTA Routes — outbound delivery.
Directory category: Gateway. 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 2026-09-11 snapshot shows about Symantec MTA Routes
Across 33 distinct TLDs its top three are .com (40.3%), .org (12.4%), .co.uk (10.9%) — together 63.7% of the 201 domains, which makes the footprint moderately concentrated, with a recognisable home market. The service most often observed on the same domains is MTA Routes (Mailbox, 99 domains, 49.3% of them), followed by Microsoft 365 (32.3%). 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 (2026-09-11); 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 Symantec MTA Routes
What else the same 201 domains use — cross-tabulated from the same daily snapshot (2026-09-11).
| Type | Service | Domains | Share of Symantec MTA Routes users |
|---|---|---|---|
| Mailbox | MTA Routes | 99 | 49.3% |
| Mailbox | Microsoft 365 | 65 | 32.3% |
| Mailbox | Unknown / Other | 8 | 4.0% |
| Mailbox | Google Workspace | 5 | 2.5% |
| Mailbox | Self-Hosted | 4 | 2.0% |
| Mailbox | SpamExperts (AntiSpamCloud) | 4 | 2.0% |
| ESP | SendGrid (Twilio) | 21 | 10.4% |
| ESP | Mandrill | 20 | 10.0% |
| ESP | Amazon SES | 20 | 10.0% |
| ESP | Mailchimp | 19 | 9.5% |
TLD distribution (top 30 of 33)
Frequently asked questions
How many domains use Symantec MTA Routes?
201 domains in the Tranco top-1M use Symantec MTA Routes as their email service provider (ESP) as of September 11, 2026, according to Live Direct Marketing's daily DNS scan.
What is Symantec MTA Routes's market share?
Symantec MTA Routes holds 0.03% of SPF-publishing domains in the Tranco top-1M (snapshot of 2026-09-11). The number is recomputed every day.
What are the biggest alternatives to Symantec MTA Routes?
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 2026-09-11).
Largest email service provider (ESP)s in this category
Amazon SES (6.17%) · SendGrid (Twilio) (4.63%) · Mailgun (4.00%) · Zendesk (3.76%) · Mailchimp (3.56%) · Mandrill (3.24%) · HubSpot (3.10%) · Salesforce (2.54%) · Mailjet (Sinch) (2.12%) · Cloudflare Email Routing (1.93%)
Domain sample (top 100 by Tranco rank)
Showing 100 of 201 domains.