Email Stats › Blog › Top mailbox providersTop mailbox providers 2026
According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), the top 1 million websites route email through 224 identifiable mailbox providers . The largest is Self-Hosted at 22.44% of domains with MX records. This page ranks them all and links to a full guide for each.
Key facts 224 mailbox providers tracked across 658,711 domains with MX records (Tranco top-1M, 2026-07-13). Largest: Self-Hosted — 22.44% of domains with MX records. Combined share of all tracked mailbox providers: 100.0%. Every row links to a data-backed guide; figures update daily. A domain's mailbox provider is decided by its MX records — the DNS entries that tell the world where to deliver its mail. Reading MX across the Tranco top-1M gives a clean, unbiased map of who actually runs the world's inboxes, because it measures configuration, not marketing claims.
Three forces dominate the picture. First, the hyperscale suites — Google Workspace and Microsoft 365 — which between them anchor a large share of business email and keep growing as small companies abandon self-managed servers. Second, self-hosting, still surprisingly large but in slow structural decline. Third, a long and instructive tail of hosting companies, registrars and regional providers that matters enormously for anyone sending mail into a specific country or vertical.
Mailbox-provider share across the Tranco top-1M, by domains publishing MX records (updated daily). Full ranking — all 224 mailbox providers
Share = % of domains with MX records in the Tranco top-1M. Click any name for its full guide.
# Mailbox Provider Domains Share Δ 30d 1 Self-Hosted 147,798 22.44% -0.40 pp 2 Google Workspace 143,500 21.79% +0.17 pp 3 Microsoft 365 110,268 16.74% +0.17 pp 4 Unknown / Other 49,698 7.54% -0.28 pp 5 Generic / unmatched (mx*.*) 16,958 2.57% -0.16 pp 6 Proofpoint 12,497 1.90% -0.03 pp 7 Generic / unmatched (mail.*) 11,519 1.75% +0.04 pp 8 Yandex 360 10,800 1.64% -0.03 pp 9 Cloudflare Email Routing 10,508 1.60% +0.04 pp 10 Mimecast 10,010 1.52% -0.03 pp 11 Hostinger 7,913 1.20% +0.02 pp 12 Namecheap Email Forwarding 6,929 1.05% -0.01 pp 13 Zoho Mail 6,813 1.03% +0.02 pp 14 QQ Mail (Tencent) 5,498 0.83% +0.04 pp 15 GoDaddy 5,002 0.76% +0.01 pp 16 OVH Mail 4,689 0.71% +0.03 pp 17 Amazon WorkMail 4,665 0.71% -0.01 pp 18 1&1 IONOS 4,004 0.61% +0.10 pp 19 Mail.ru for Business 3,517 0.53% -0.04 pp 20 Barracuda 3,489 0.53% +0.01 pp 21 Jellyfish (Namecheap) 2,903 0.44% -0.02 pp 22 Proofpoint Essentials 2,838 0.43% +0.02 pp 23 SpamExperts (SolarWinds) 2,663 0.40% -0.03 pp 24 Cisco IronPort 2,619 0.40% -0.06 pp 25 Beget (RU) 2,290 0.35% +0.02 pp 26 Mailgun (inbound) 2,281 0.35% -0.00 pp 27 Rackspace Email 2,206 0.33% -0.01 pp 28 Alibaba Mail (China) 2,083 0.32% +0.02 pp 29 Zoho Mail (EU) 1,811 0.27% +0.01 pp 30 Hosted Email (Rackspace/IONOS) 1,752 0.27% — 31 Namecheap PrivateEmail 1,660 0.25% — 32 ProtonMail 1,656 0.25% — 33 FastMail 1,576 0.24% — 34 NetEase Mail 1,516 0.23% — 35 Gandi Mail 1,465 0.22% — 36 Hornetsecurity 1,455 0.22% — 37 Timeweb (RU) 1,391 0.21% — 38 Alibaba Cloud 1,371 0.21% — 39 Lark / Feishu (ByteDance) 1,258 0.19% — 40 Trend Micro 1,215 0.18% — 41 All-Inkl (DE) 1,169 0.18% — 42 Titan (Hostinger) 1,167 0.18% — 43 Strato (DE) 1,125 0.17% — 44 StackMail (UK mailbox) 1,068 0.16% — 45 Zoho Mail (IN) 1,043 0.16% — 46 CSC (corporate) 1,023 0.16% — 47 MailChannels 1,022 0.16% — 48 Generic / unmatched (smtp.*) 1,018 0.15% — 49 Hetzner 910 0.14% — 50 Locaweb (BR) 890 0.14% — 51 Ukraine.com.ua hosting 862 0.13% — 52 HostedMXserver 844 0.13% — 53 Sophos Email 840 0.13% — 54 Infomaniak (CH) 749 0.11% — 55 Reg.ru 747 0.11% — 56 ImprovMX (forwarding) 685 0.10% — 57 Above.com (parking) 668 0.10% — 58 SpamExperts 666 0.10% — 59 MailHostBox 597 0.09% — 60 Kagoya (JP) 587 0.09% — 61 SecureMX (JP) 585 0.09% — 62 Symantec MessageLabs 555 0.08% — 63 ISPGateway (DE) 543 0.08% — 64 Network Solutions / Web.com 521 0.08% — 65 Forward Email 496 0.08% — 66 CSOF (DE) 491 0.07% — 67 Microsoft 365 US Government 481 0.07% — 68 Migadu 480 0.07% — 69 NetEase 163 462 0.07% — 70 Cafe24 (Gabia, KR) 455 0.07% — 71 Daum Mail 444 0.07% — 72 Register.it (IT mailbox) 443 0.07% — 73 DreamHost 431 0.07% — 74 One.com mailpod 416 0.06% — 75 NIC.RU Mail 410 0.06% — 76 Sophos MXrecord 409 0.06% — 77 GMO Lolipop (JP) 384 0.06% — 78 iCloud Mail 384 0.06% — 79 United Domains (DE) 379 0.06% — 80 Mailbox.org 358 0.05% — 81 Hostpoint (CH) 352 0.05% — 82 Zoho mGov Cloud (IN) 349 0.05% — 83 pair Networks 342 0.05% — 84 Servicio de Correo (Arsys, ES) 341 0.05% — 85 Secure.ne.jp (JP) 327 0.05% — 86 Naver Works Mobile (LINE) 321 0.05% — 87 Aruba Business (IT) 314 0.05% — 88 FireEye 312 0.05% — 89 Seznam.cz (Czech) 293 0.04% — 90 Hoster.by (BY) 290 0.04% — 91 MasterHost (RU) 290 0.04% — 92 dPoczta (PL) 280 0.04% — 93 Porkbun Email Forwarding 256 0.04% — 94 SpaceWeb (RU) 255 0.04% — 95 FSI (JP ISP) 252 0.04% — 96 Intermedia 247 0.04% — 97 Mittwald (DE) 240 0.04% — 98 EmailSecurity.app gateway 236 0.04% — 99 WHM Panels 236 0.04% — 100 Combell MailProtect (BE) 235 0.04% — 101 Eye-Mail shared 235 0.04% — 102 Loopia (SE) 230 0.03% — 103 KingHost (BR) 227 0.03% — 104 Hiworks (KR mailbox) 226 0.03% — 105 Mirohost (UA) 216 0.03% — 106 GMO Heteml (JP) 213 0.03% — 107 FORPSI (Internet CZ) 211 0.03% — 108 Hornetsecurity (AntispamEurope) 207 0.03% — 109 SendGrid (inbound routing) 207 0.03% — 110 Yahoo Small Business / Turbify 204 0.03% — 111 Purelymail 201 0.03% — 112 123-reg (UK) 189 0.03% — 113 TransIP Mail (NL) 188 0.03% — 114 Vade Secure Cloud 188 0.03% — 115 MTA Routes 186 0.03% — 116 Uhserver / Tucows shared 183 0.03% — 117 UzmanPosta (TR) 183 0.03% — 118 Cloudflare Area 1 Email 179 0.03% — 119 Shoptet (CZ) 170 0.03% — 120 WEDOS (CZ) 170 0.03% — 121 Krystal Hosting (UK) 169 0.03% — 122 DonDominio (ES) 165 0.03% — 123 Uni5/HostMidia (BR) 165 0.03% — 124 Ticimax (TR) 164 0.02% — 125 Spaceship Mail 158 0.02% — 126 Mailplug (KR) 156 0.02% — 127 Dynadot Email 155 0.02% — 128 VerticalScope 155 0.02% — 129 Cloud DNS 152 0.02% — 130 Imena.ua (UA) 151 0.02% — 131 RENATER (FR academic) 150 0.02% — 132 vshosting (CZ) 145 0.02% — 133 Websupport (SK) 140 0.02% — 134 Zoner (CZ) 139 0.02% — 135 Hostopia / CarrierZone 137 0.02% — 136 Yunyou (CN) 136 0.02% — 137 SpamExperts (AntiSpamCloud) 131 0.02% — 138 eXpurgate (eleven) 129 0.02% — 139 263 Mail (CN) 128 0.02% — 140 OCN (NTT Japan) 123 0.02% — 141 Heart Internet (UK) 121 0.02% — 142 Simply.com (DK) 118 0.02% — 143 Retarus 116 0.02% — 144 NameCrane MXfilter 115 0.02% — 145 Securence (US gateway) 114 0.02% — 146 MarkMonitor (corporate) 112 0.02% — 147 Umbler (BR) 112 0.02% — 148 Skymail (BR) 109 0.02% — 149 easyDNS 109 0.02% — 150 CSC / NetNames 108 0.02% — 151 Tutanota 108 0.02% — 152 iberlayer (ES) 108 0.02% — 153 Amazon SES (inbound) 107 0.02% — 154 LiveMail (InterNetX UK) 105 0.02% — 155 Domeneshop (NO) 96 0.01% — 156 Rediffmail Pro 96 0.01% — 157 Zoho Mail (AU) 96 0.01% — 158 NameBright Mail 95 0.01% — 159 IQ.pl (PL) 92 0.01% — 160 Name.com Email 89 0.01% — 161 SpamTitan 88 0.01% — 162 Zenbox / cyber_Folks (PL) 88 0.01% — 163 LanCloud (RU) 86 0.01% — 164 InterMaxGroup 84 0.01% — 165 Kurumsal E-Posta (Nics, TR) 84 0.01% — 166 IHS Telekom (TR) 83 0.01% — 167 Zoho Mail (CN) 82 0.01% — 168 Host Europe (DE) 81 0.01% — 169 Nominalia (IT) 78 0.01% — 170 F.A.C.C.T. Atmosphere 74 0.01% — 171 Singapore GovTech 72 0.01% — 172 H-Email shared 69 0.01% — 173 1API / WiTGlobal 68 0.01% — 174 Diamatrix MX (ZA) 67 0.01% — 175 Magenta Business (T-Mobile AT) 66 0.01% — 176 Runbox 66 0.01% — 177 Topsec / TS-Mail (CN) 64 0.01% — 178 FWW shared 62 0.01% — 179 MXroute 61 0.01% — 180 Hostnet (NL) 60 0.01% — 181 MailRoute 60 0.01% — 182 MailerHost shared 59 0.01% — 183 ZoneEdit (easyDNS) 59 0.01% — 184 Scoots Mail 57 0.01% — 185 BigCommerce 56 0.01% — 186 Netcore (IN) 55 0.01% — 187 Your Hosting (NL) 54 0.01% — 188 WebMo (CTS, FR) 53 0.01% — 189 Logix Infosecurity (IN) 51 0.01% — 190 Nic.ru 51 0.01% — 191 qboxmail (IT) 50 0.01% — 192 Nameshield 48 0.01% — 193 Active24 (CZ/NO) 46 0.01% — 194 ZXCS (NL gateway) 45 0.01% — 195 One.com (DK) 43 0.01% — 196 ITSFogo 41 0.01% — 197 Loopia mail cluster 40 0.01% — 198 Naver Mail 37 0.01% — 199 French Ministry of Education 36 0.01% — 200 UC Worker shared 36 0.01% — 201 Action Group (RU) 35 0.01% — 202 BookMyName (Scaleway) 35 0.01% — 203 McAfee/Mxlogic 35 0.01% — 204 NetAngels (RU) 35 0.01% — 205 Delti / InterNetX (DE) 32 0.00% — 206 Openprovider NoSpamCloud 31 0.00% — 207 Aruba (IT) 30 0.00% — 208 TopDNS 30 0.00% — 209 EveryCloudTech (forwarding) 28 0.00% — 210 ScanScope 28 0.00% — 211 PCextreme / Your Hosting (NL) 24 0.00% — 212 Uniweb (NO) 24 0.00% — 213 Lite-Host (IN) 17 0.00% — 214 Scaleway 12 0.00% — 215 GMX 11 0.00% — 216 Onet.pl (Poland) 10 0.00% — 217 T-Online 10 0.00% — 218 UKR.NET 8 0.00% — 219 Free.fr 7 0.00% — 220 Rambler (RU) 7 0.00% — 221 Host-H (BG) 6 0.00% — 222 Jino (RU) 6 0.00% — 223 Bluehost 5 0.00% — 224 Orange.fr 5 0.00% —
Why the mailbox mix matters for deliverability Every mailbox provider filters mail by its own rules. Gmail weights engagement and domain reputation heavily; Microsoft 365 leans on its own SmartScreen signals and is notoriously sensitive to sudden volume; regional hosts often run stricter, less forgiving greylisting. If a meaningful share of your audience sits behind a provider you never test against, your inbox-placement rate is a guess. The ranking below is the starting point for deciding which seed mailboxes actually represent your recipients.
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Test inbox placement → Frequently asked questions What is the most-used mailbox provider in 2026? Self-Hosted is the most common mailbox provider in the Tranco top-1M, used by 147,798 domains (22.44% of domains with MX records) as of July 13, 2026.
How many mailbox providers are there in the top 1M? Live Direct Marketing's scan identifies 224 distinct mailbox providers with at least a handful of domains each, as of 2026-07-13.
