Email providers portfolio

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Catalogue of mailbox providers, hosting bundles, anti-spam gateways and forwarders observed across the Tranco top-1M. Click a card for the detailed analysis; mini-charts show the provider's share dynamics over the past snapshots.

254providers in current scan
253catalogued (with description)
99.87%of all MX-domains covered
2026-09-13scan date · 664,797 MX domains
Self-hosted 148,813 domains
Domains running their own mail server (MX target on the same apex). Spans hobbyists, ISPs, and large enterprises with private infrastructure.
Generic catchall 43,914 domains
MX targets that did not match any known pattern and don't follow the generic mail./mx./smtp. naming convention.
Generic catchall 16,844 domains
Hosts named "mx*.<apex>" not matching a known operator. Likely self-hosted or niche provider.
Generic catchall 12,908 domains
Hosts named "mail.<apex>" not matching a known operator pattern. Mostly self-hosted long tail.
Anti-spam gateway 🇺🇸 2,581 domains
N-able/SolarWinds SpamExperts mailspamprotection.com platform.
Anti-spam gateway 🇺🇸 2,499 domains
Cisco Secure Email (formerly IronPort).
Mailbox provider 🇺🇸 2,115 domains
Rackspace brand mailbox (emailsrvr.com).
Email forwarder 🇦🇺 653 domains
Domain monetization platform (forwarders for parked domains).
No historical data yet.
Hosting bundle 🇩🇪 595 domains
White-label control panel used by smaller German hosts.
Anti-spam gateway 🇯🇵 594 domains
Japan anti-spam inbound gateway (Internet Initiative Japan).
No historical data yet.
Hosting bundle 560 domains
White-label hosted MX service.
No historical data yet.
Hosting bundle 🇩🇰 480 domains
One.com shared mailpod cluster.
Mailbox provider 🇨🇳 470 domains
NetEase 163.com consumer mail.
Hosting bundle 🇩🇪 463 domains
Niche German hosting (Computer Service Online Folkesund).
No historical data yet.
Anti-spam gateway 🇬🇧 447 domains
Sophos Email branded as mxrecord.io / .mx for customer-facing MX.
No historical data yet.
Mailbox provider 🇷🇺 430 domains
Mailbox service operated by RU-CENTER.
Corporate / brand protection 🇮🇳 368 domains
Zoho-operated Indian government cloud mail.
No historical data yet.
Mailbox provider 🇯🇵 341 domains
Japanese SAKURA-related shared mailbox (secure.ne.jp).
No historical data yet.
0.05%
Anti-spam gateway 🇺🇸 305 domains
Trellix/FireEye email security.
No historical data yet.
Mailbox provider 🇵🇱 283 domains
Polish business mailbox provider.
No historical data yet.
Hosting bundle 263 domains
Generic cPanel/WHM-based shared hosting.
No historical data yet.
Mailbox provider 🇯🇵 256 domains
Japanese ISP mail (fsi.ne.jp).
No historical data yet.
Hosting bundle 🇨🇿 169 domains
Czech managed-hosting for e-commerce stacks.
No historical data yet.
Hosting bundle 164 domains
Shared mailbox infra used by various resellers (uhserver.com).
No historical data yet.
Corporate / brand protection 🇨🇦 148 domains
Canadian forum/community network operator.
No historical data yet.
Anti-spam gateway 🇹🇷 141 domains
Turkish anti-spam/inbound gateway.
No historical data yet.
Hosting bundle 🇨🇳 139 domains
Chinese hosting (Yunyou.top operator).
No historical data yet.
Mailbox provider 🇬🇧 127 domains
InterNetX UK livemail.co.uk shared mail.
No historical data yet.
Anti-spam gateway 🇺🇸 118 domains
NameCrane anti-spam outsourced filtering.
No historical data yet.
Hosting bundle 107 domains
Shared cPanel mailbox (eye-mail.net).
No historical data yet.
Anti-spam gateway 🇪🇸 105 domains
Spanish anti-spam gateway operator.
No historical data yet.
Hosting bundle 🇳🇱 72 domains
Dutch managed hosting with bundled mail (Intermax Group).
No historical data yet.
Hosting bundle 🇳🇱 71 domains
Dutch shared hosting (yourfilter.nl backbone).
No historical data yet.
Hosting bundle 64 domains
Shared cPanel mailbox (h-email.net).
No historical data yet.
Hosting bundle 🇫🇷 61 domains
French CTS Computers shared webmail (webmo.fr).
No historical data yet.
Hosting bundle 59 domains
Shared cPanel mailbox (fwwgo.com).
No historical data yet.
Hosting bundle 51 domains
Shared cPanel mailbox (mailerhost.net).
No historical data yet.
Mailbox provider 49 domains
Niche mailbox provider (scoots.email).
No historical data yet.
ESP / sender 🇷🇺 38 domains
Russian transactional mail/relay operator.
No historical data yet.
Hosting bundle 🇫🇷 37 domains
Scaleway-owned domain registrar with bundled mail.
No historical data yet.
0.01%
Hosting bundle 🇬🇧 37 domains
UK SMB hosting (itsfogo.com).
No historical data yet.
Hosting bundle 37 domains
Shared MX cluster behind Cloudflare (uc-workd.com).
No historical data yet.
Anti-spam gateway 🇺🇸 33 domains
Legacy Mxlogic / McAfee SaaS email security.
0.00%
Hosting bundle 33 domains
White-label DNS+mail (Internet Domain Service BS).
No historical data yet.
Anti-spam gateway 31 domains
Niche scanning/inbound provider.
No historical data yet.
Hosting bundle 🇩🇪 28 domains
Munich registrar group with bundled hosting/mail.
No historical data yet.
Hosting bundle 🇮🇳 23 domains
Indian budget hosting/mail (lite-host.in).
No historical data yet.
NameSilo Backup MX
0.00%
Anti-spam gateway 🇺🇸 3 domains
NameSilo registrar provides backup MX (fakemx.net).
No historical data yet.
EveryCloud US
0.00%
Anti-spam gateway 🇺🇸 2 domains
EveryCloud US filtering platform.
No historical data yet.
MailWise / IceWarp shared
0.00%
Hosting bundle 2 domains
Shared IceWarp/MailEnable cluster (mwprem.net).
No historical data yet.
0.00%
ESP / sender 2 domains
Bulk-mail relay observed in long-tail traffic.
No historical data yet.
Bigmir
0.00%
Mailbox provider 🇺🇦 1 domains
Ukrainian web portal + consumer mail.
No historical data yet.
i.UA
0.00%
Mailbox provider 🇺🇦 1 domains
Ukrainian consumer mail i.ua.
No historical data yet.
Uncatalogued 902 domains
Uncatalogued provider — description coming.
No historical data yet.

Source: OpenINTEL forward-DNS Tranco snapshot (2026-09-13). Provider patterns: dictionaries/mx_providers.py. Descriptions: dictionaries/providers_meta.py. Sparklines render only for providers tracked in history.json; new providers will start appearing as future scans accumulate.