rexx systems — market share 2026

saas

According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), rexx systems is the SaaS sender for 221 domains — 0.04% of 617,702 SPF-publishing domains. Its strongest TLD is .de (57.9% of its domains). Detection: include: mechanisms in the SPF record.

221domains

0.04%of SPF-publishing domains

14distinct TLDs

2026-07-13snapshot (updated daily)

Commonly used together with rexx systems

What else the same 221 domains use — cross-tabulated from the same daily snapshot (2026-07-13).

Type	Service	Domains	Share of rexx systems users
Mailbox	Microsoft 365	80	36.2%
Mailbox	Self-Hosted	42	19.0%
Mailbox	Unknown / Other	35	15.8%
Mailbox	Hornetsecurity	13	5.9%
Mailbox	Generic / unmatched (mx.)	12	5.4%
Mailbox	Proofpoint	10	4.5%

TLD distribution (top 14 of 14)

de — 128 (57.9%)

com — 62 (28.1%)

at — 8 (3.6%)

ch — 8 (3.6%)

org — 4 (1.8%)

eu — 2 (0.9%)

biz — 2 (0.9%)

museum — 1 (0.5%)

sh — 1 (0.5%)

net — 1 (0.5%)

tv — 1 (0.5%)

berlin — 1 (0.5%)

swiss — 1 (0.5%)

nrw — 1 (0.5%)

Frequently asked questions

How many domains use rexx systems?

221 domains in the Tranco top-1M use rexx systems as their SaaS sender as of July 13, 2026, according to Live Direct Marketing's daily DNS scan.

What is rexx systems's market share?

rexx systems holds 0.04% 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 rexx systems?

The largest SaaS senders in the same category by Tranco top-1M share are: Shopify, Pardot (Salesforce), CodeTwo Email Signatures 365, KnowBe4, Statuspage (Atlassian) (as of 2026-07-13).

Largest SaaS senders in this category

Shopify (0.87%) · Pardot (Salesforce) (0.79%) · CodeTwo Email Signatures 365 (0.71%) · KnowBe4 (0.56%) · Statuspage (Atlassian) (0.34%) · Trustpilot (0.30%) · Atlassian (Jira/Confluence) (0.30%) · Firebase (Google) (0.29%) · BigCommerce (0.22%) · Lark / Feishu (0.21%)

SaaS senders portfolio → · Full daily report →

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Domain sample (top 100 by Tranco rank)

ors.attag24.deduden.deelk-wue.degoodgamestudios.comcornelsen.dega.dedrei.comkreiselelectric.commesse-stuttgart.deduesseldorf.dehoffmann-group.comjaggaer.comcyberport.dewz.dehs-augsburg.denewyorker.delancom.dejobrad.orgzkm.dehusqvarnagroup.comdirs21.destrauss.comasklepios.comsegmueller.deskd.museumpei.deloesdau.desupplyon.comgabor.comkibek.desmarketer.deallplan.comcodesys.comtennis-point.deakdb.deweidmueller.comhdg.dewwf.chswisscasinos.chduravit.comeasycredit.deaponeo.dehs-duesseldorf.deluebeck.dealltours.dedole.comjsmd-group.combet-at-home.comoffice-partner.deifa.destadt-frankfurt.denhm-wien.ac.atbaslerweb.comschleich-s.comitk-rheinland.deglobus.chdornbracht.commedian-kliniken.dewupperinst.orgzlb.defsw.atbrax.comstudienkreis.dealnatura.deberliner-feuerwehr.departseurope.eubastei-luebbe.dekare-design.comschoen-klinik.demywellness.deabda.denanu-nana.detha.deledlenser.combauhaus.deprosiebensat1puls4.comviseca.chschueller.deatlantic-hotels.demoenchengladbach.decancom.deburgerking.dedimplex.desos-kinderdoerfer.deluebbe.dedrykorn.comkoelle-zoo.dekare.deunterwegs.bizpeek-und-cloppenburg.detorqeedo.comtransa.chalpsalpine.comkind.commitsubishi-motors.dechefsculinar.decitti.degolfhouse.dehermle.de

Showing 100 of 221 domains.