iCoreMail email provider statistics and deliverability context

esp

According to Live Direct Marketing's daily Tranco top-1M scan (September 11, 2026), iCoreMail is the email service provider (ESP) for 345 domains — 0.05% of 631,089 SPF-publishing domains. Its strongest TLD is .cn (50.7% of its domains). Detection: include: mechanisms in the SPF record.

Last updated from the 2026-09-11 DNS snapshot.

345domains

0.05%of SPF-publishing domains

15distinct TLDs

2026-09-11snapshot (updated daily)

What iCoreMail represents in this dataset

iCoreMail — Indian email marketing platform.

Directory category: Esp. The classification comes from include: mechanisms in the SPF record. It describes observed DNS infrastructure, not a commercial relationship and not the placement of any individual message.

What the 2026-09-11 snapshot shows about iCoreMail

Across 15 distinct TLDs its top three are .cn (50.7%), .com (34.2%), .com.cn (9.0%) — together 93.9% of the 345 domains, which makes the footprint narrow — three TLDs cover most of it, which is typical of a regional or single-market operator. The service most often observed on the same domains is Unknown / Other (Mailbox, 145 domains, 42.0% of them), followed by Self-Hosted (30.7%). Directly comparable by the same detection rule: Amazon SES, SendGrid (Twilio), Mailgun. Ranking between them reflects what is published in DNS, not delivery quality or volume sent. All figures come from a single daily DNS snapshot (2026-09-11); a domain appears here when its published records match the include: mechanisms in the SPF record rule, which is an infrastructure fact, not a commercial relationship.

Commonly used together with iCoreMail

What else the same 345 domains use — cross-tabulated from the same daily snapshot (2026-09-11).

Type	Service	Domains	Share of iCoreMail users
Mailbox	Unknown / Other	145	42.0%
Mailbox	Self-Hosted	106	30.7%
Mailbox	Generic / unmatched (mx.)	80	23.2%
Mailbox	Generic / unmatched (mail.*)	4	1.2%
Mailbox	QQ Mail (Tencent)	2	0.6%
Mailbox	Google Workspace	2	0.6%
ESP	Mandrill	4	1.2%
ESP	Mailgun	2	0.6%
ESP	Zendesk	2	0.6%
ESP	HubSpot	1	0.3%

TLD distribution (top 15 of 15)

cn — 175 (50.7%)

com — 118 (34.2%)

com.cn — 31 (9.0%)

net — 8 (2.3%)

id — 3 (0.9%)

tech — 1 (0.3%)

ltd — 1 (0.3%)

co — 1 (0.3%)

pe — 1 (0.3%)

edu — 1 (0.3%)

fm — 1 (0.3%)

ai — 1 (0.3%)

cc — 1 (0.3%)

io — 1 (0.3%)

im — 1 (0.3%)

Frequently asked questions

How many domains use iCoreMail?

345 domains in the Tranco top-1M use iCoreMail as their email service provider (ESP) as of September 11, 2026, according to Live Direct Marketing's daily DNS scan.

What is iCoreMail's market share?

iCoreMail holds 0.05% of SPF-publishing domains in the Tranco top-1M (snapshot of 2026-09-11). The number is recomputed every day.

What are the biggest alternatives to iCoreMail?

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 2026-09-11).

Largest email service provider (ESP)s in this category

Amazon SES (6.17%) · SendGrid (Twilio) (4.63%) · Mailgun (4.00%) · Zendesk (3.76%) · Mailchimp (3.56%) · Mandrill (3.24%) · HubSpot (3.10%) · Salesforce (2.54%) · Mailjet (Sinch) (2.12%) · Cloudflare Email Routing (1.93%)

ESP / mailing services portfolio → · Full daily report →

Your message may perform differently. Run an inbox placement test before sending through iCoreMail.

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Domain sample (top 100 by Tranco rank)

shein.com chinadaily.com.cn pku.edu.cn china.com mgtv.com mercedes-benz.com.cn fudan.edu.cn zju.edu.cn oray.netcninfo.com.cnantpool.com whu.edu.cn sdu.edu.cn pbc.gov.cn sse.com.cn icoremail.net tongji.edu.cn xmu.edu.cn xjtu.edu.cn jlu.edu.cn hust.edu.cn woerxny.com cau.edu.cn sfn.cn bnu.edu.cn scu.edu.cn cecchina.com csu.edu.cn nwpu.edu.cn cbn.net.id chinaacc.com coscoshipping.com wangsu.com ustb.edu.cn lzu.edu.cn cqu.edu.cn ouc.edu.cn xidian.edu.cn uestc.edu.cn ynu.edu.cn cdeledu.com cnpiec.com.cn scnu.edu.cn dclyy.com shimo.im ncu.edu.cn shu.edu.cn iflytek.com szu.edu.cn swjtu.edu.cn ccmu.edu.cn yingkelawyer.com gzidc.com zzu.edu.cn bjtu.edu.cn romwe.com yutong.com ccccltd.cn snnu.edu.cn strongh.cn swu.edu.cn ncepu.edu.cn secpool.com fzu.edu.cn sufe.edu.cn bmw.com.cn sicau.edu.cn nudt.edu.cn cdut.edu.cn bjut.edu.cn ysu.edu.cn fcdynamics.com szjifeng.cn cupl.edu.cn quarkfinance.net scau.edu.cn 52tt.com hqu.edu.cn wxnord.com penganfunds.com cae.cn caict.ac.cn xyt-tech.com gdufs.edu.cn unionpayintl.com xju.edu.cn nbu.edu.cn guosen.com.cn lizhifm.com sdau.edu.cn move2shanghai.com hxu.edu.cn nefu.edu.cn zuel.edu.cn lizhi.fm gbvh.com sdut.edu.cn shufe.edu.cn ytu.edu.cn shzu.edu.cn

Showing 100 of 345 domains.