StackMail — market share 2026

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According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), StackMail is the email service provider (ESP) for 1,097 domains — 0.18% of 617,702 SPF-publishing domains. Its strongest TLD is .com (53.3% of its domains). Detection: include: mechanisms in the SPF record.

1,097domains
0.18%of SPF-publishing domains
88distinct TLDs
2026-07-13snapshot (updated daily)

Commonly used together with StackMail

What else the same 1,097 domains use — cross-tabulated from the same daily snapshot (2026-07-13).

TypeServiceDomainsShare of StackMail users
MailboxStackMail (UK mailbox)91583.4%
MailboxMicrosoft 365726.6%
MailboxGoogle Workspace625.7%
MailboxSelf-Hosted171.5%
MailboxUnknown / Other70.6%
MailboxBarracuda30.3%
ESPMailerSend232.1%
ESPMailchimp191.7%
ESPMailgun141.3%
ESPMandrill121.1%

TLD distribution (top 30 of 88)

com — 585 (53.3%)
co.uk — 164 (14.9%)
org — 59 (5.4%)
net — 42 (3.8%)
uk — 26 (2.4%)
org.uk — 24 (2.2%)
site — 19 (1.7%)
in — 9 (0.8%)
info — 9 (0.8%)
ma — 8 (0.7%)
gov.uk — 8 (0.7%)
pk — 7 (0.6%)
nl — 7 (0.6%)
co — 6 (0.5%)
cloud — 6 (0.5%)
io — 6 (0.5%)
com.pk — 4 (0.4%)
co.za — 4 (0.4%)
es — 4 (0.4%)
online — 4 (0.4%)
ca — 4 (0.4%)
xyz — 3 (0.3%)
cz — 3 (0.3%)
host — 3 (0.3%)
eu — 3 (0.3%)
ie — 3 (0.3%)
biz — 3 (0.3%)
shop — 2 (0.2%)
ai — 2 (0.2%)
store — 2 (0.2%)

Frequently asked questions

How many domains use StackMail?

1,097 domains in the Tranco top-1M use StackMail as their email service provider (ESP) as of July 13, 2026, according to Live Direct Marketing's daily DNS scan.

What is StackMail's market share?

StackMail holds 0.18% of SPF-publishing domains in the Tranco top-1M (snapshot of 2026-07-13). The number is recomputed every day.

What are the biggest alternatives to StackMail?

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 2026-07-13).

Largest email service provider (ESP)s in this category

Amazon SES (6.21%) · SendGrid (Twilio) (4.76%) · Mailgun (4.11%) · Zendesk (3.86%) · Mailchimp (3.69%) · Mandrill (3.36%) · HubSpot (3.18%) · Salesforce (2.62%) · Mailjet (Sinch) (2.13%) · Cloudflare Email Routing (1.80%)

ESP / mailing services portfolio → · Full daily report →

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Domain sample (top 100 by Tranco rank)

simplypsychology.orginnfinite.co.ukbeak.hostlyricalhost.cominsightandsound.co.ukmidphase.comwesthost.comthisislondon.co.ukfilefront.comspielautomatenhersteller.comserverbyt.inepikads.comprojecteuler.netmedplusmart.comokyanust.comwpworld.hostjupicasino.netmontessorijobsuk.co.ukwazaelimu.comtgtransport.netdubaicityofgold.comspartacus-educational.com1ahostingpro.chbombaymatka.cogamefront.comwillemlange.comhealthhosts.nettraditionalmusic.co.ukunitelgroup.co.ukdepersonaapersona.esdemoslot.comsolidspace.comharderfaster.netmukhost.ukcomo-saber.comfastbots.aiwebkitty.eula-razon.comspacewincasino.orgkoipelajar.comauto-tests.como3host.netknickersboxersglory.comwilliamsfamilytree.co.ukpsdf.org.pkpiramithaber.comizen.lolmegalith-games.comintelligentliving.cobbnplanet.comjabrahost.commsxpro.compellpax.co.ukserverbyt.nettheubj.comntcloudhosting.comtpos.co.ukap2t.domainsfindafishingboat.comthaietcgroup.comfreewebmarks.comtecknaonline.ukfree-socialbookmarking.comnealsyardremedies.com01000000.netzaiocity.netoutrank.ukseventy9.co.ukantoniagentry.orgbrandedcutpieces.com.pkvcarde.comgamingtierlist.comlayer.rogoldr.orgtiendapatsy.comkappa.net.indigitalserver.ioapollo13themes.comweather2travel.comsexsexsex.meiplark.commapnall.comineedwebhosting.uksocial-bookmarkingsites.comfree-keezmovies.cfdmyjethostpro.comfasthostingdirect.comsuperfast-hosting.comheminover.comfreebookmarkingsite.comtalentmark.comsatellites.co.ukdailysportscar.comnayapatrikadaily.comeplindex.comlinuxdns1.comlogon.com.pkyesworld.comwordtohtml.netjohnlennon.com

Showing 100 of 1,097 domains.