Retarus — market share 2026

mailbox

According to Live Direct Marketing's daily Tranco top-1M scan (July 12, 2026), Retarus is the mailbox provider for 116 domains — 0.02% of 658,108 domains with MX records. Its strongest TLD is .de (40.5% of its domains). Detection: primary MX record (lowest preference).

116domains

0.02%of domains with MX records

21distinct TLDs

2026-07-12snapshot (updated daily)

Commonly used together with Retarus

What else the same 116 domains use — cross-tabulated from the same daily snapshot (2026-07-12).

Type	Service	Domains	Share of Retarus users
ESP	Retarus (DE gateway)	83	71.6%
ESP	IP Made (CDP)	20	17.2%
ESP	Mailjet (Sinch)	7	6.0%
ESP	Amazon SES	7	6.0%
ESP	Salesforce	6	5.2%
ESP	Salesforce Marketing Cloud	6	5.2%
ESP	Mandrill	6	5.2%
ESP	Zendesk	4	3.4%
ESP	Brevo (ex-Sendinblue)	4	3.4%
ESP	Constant Contact	4	3.4%

TLD distribution (top 21 of 21)

de — 47 (40.5%)

com — 34 (29.3%)

fr — 6 (5.2%)

at — 6 (5.2%)

ch — 4 (3.4%)

eu — 2 (1.7%)

net — 2 (1.7%)

nl — 2 (1.7%)

tv — 1 (0.9%)

lu — 1 (0.9%)

cz — 1 (0.9%)

ro — 1 (0.9%)

es — 1 (0.9%)

co.uk — 1 (0.9%)

it — 1 (0.9%)

hr — 1 (0.9%)

edu — 1 (0.9%)

se — 1 (0.9%)

fitness — 1 (0.9%)

pl — 1 (0.9%)

sk — 1 (0.9%)

Frequently asked questions

How many domains use Retarus?

116 domains in the Tranco top-1M use Retarus as their mailbox provider as of July 12, 2026, according to Live Direct Marketing's daily DNS scan.

What is Retarus's market share?

Retarus holds 0.02% of domains with MX records in the Tranco top-1M (snapshot of 2026-07-12). The number is recomputed every day.

What are the biggest alternatives to Retarus?

The largest mailbox providers in the same category by Tranco top-1M share are: Self-Hosted, Google Workspace, Microsoft 365, Unknown / Other, Generic / unmatched (mx*.*) (as of 2026-07-12).

Largest mailbox providers in this category

Self-Hosted (22.43%) · Google Workspace (21.78%) · Microsoft 365 (16.73%) · Unknown / Other (7.76%) · Generic / unmatched (mx*.*) (2.77%) · Proofpoint (1.90%) · Generic / unmatched (mail.*) (1.75%) · Yandex 360 (1.64%) · Cloudflare Email Routing (1.59%) · Mimecast (1.52%)

Mailbox providers portfolio → · Full daily report →

Sending through Retarus? Check whether your messages actually reach the inbox at Gmail, Outlook, Yandex and Mail.ru — free inbox placement test.

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Domain sample (top 100 by Tranco rank)

hornbach.dezeiss.comhornbach.nlkuehne-nagel.comnotaires.frrohde-schwarz.comiledefrance-mobilites.froeamtc.atmueller.demahle.comthomassabo.comlancom.dedegiro.nlseur.comwuv.deuk-erlangen.dehornbach.athornbach.rohornbach.chhornbach.czsupplyon.comhornbach.sezeiss.deloewen-play.dehornbach.skhellweg.deflatex.comretarus.comconti-online.comleipziger-buchmesse.degew.deflatex.deleipziger-messe.demcfit.commueller.atrandstad.detrilux.comtraviangames.compctipp.chdeutschesee.decjd.deinternetworld.degom.comsrh.dejohnreed.fitnesshornbach.comebs.eduvde-verlag.depcc.eupaul-lange.debaywa-baumarkt.dekzvb.dehockenheimring.dehornbach.lufeuerwehrmagazin.deflatexdegiro.comwatchtime.netrentenbank.deflatex.atad-hac.euqintl.comhellweg.atmueller.chpage-online.degesundheitsgmbh.dersggroup.combayerischerbauernverband.devanlaack.compct.plcomputerworld.chdegiro.eszeiss.frzeiss.itks-auxilia.destarrag.comstiftung-liebenau.deredspotapp.combauernverband.deholzwerken.netikb.debodenhaus.demessergroup.comhensel-electric.dedegiro.comrefra.comebnermedia.delancom-systems.comnorthworks.decom-magazin.debrand.detransactional-mail-d.comrmx.demueller.hrcentreleonberard.frireks.comtransactional-mail-a.comrudolf-mueller.degitarrebass.deprofessional-system.deblauergockel.de

Showing 100 of 116 domains.