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Mailgun

Transactional Email Service

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757 brands detected that use Mailgun (639 as primary ESP)

Mailgun is the 3rd most popular transactional ESP we track.

Detected by 396 distinct extension users.

Industries using Mailgun

Distribution of brands using Mailgun by industry. Helps you gauge whether this ESP is popular with businesses similar to yours. Brands tagged in two industries are counted in both.

SaaS 162 brands · 26.7% Marketing & Agencies 91 brands · 15.0% E-commerce 80 brands · 13.2% Media 44 brands · 7.3% Finance 39 brands · 6.4% Professional Services 38 brands · 6.3% Retail 33 brands · 5.4% Education 27 brands · 4.5% Health 22 brands · 3.6% Travel 15 brands · 2.5% Entertainment 14 brands · 2.3% Real Estate 10 brands · 1.7% Food & Beverage 10 brands · 1.7% Other 7 brands · 1.2% Manufacturing 6 brands · 1.0% Automotive 3 brands · 0.5% Nonprofit 3 brands · 0.5% Telecom 2 brands · 0.3%

Based on 606 of 757 brands tagged (80% coverage). Industries assigned automatically using AI; not every brand is tagged yet.

Average placement for brands using Mailgun

Where this ESP's emails land in Gmail. Each brand counted once (average of per-brand percentages) so a single high-volume sender can't dominate. Spam placement is mostly driven by the sender (list quality, content, complaint rate). This number reflects both the ESP's infrastructure AND the kind of senders who choose it — not just deliverability quality.

inbox 87.4%promotions 11.0%spam 1.6%

By volume: inbox 9,134 · promotions 680 · spam 173 (9,987 emails observed)

Percentages are averaged per brand (each counted once) across 251 brands using Mailgun with at least 5 placement observations each.

757 brands use Mailgun

639 as their primary ESP, the rest send transactional or secondary email through it. Primary users are listed first, then secondary.

Sort: Importance | Most spam
Compare Mailgun with:
Brand Role Obs Spam Last seen
Pinterest
pinterest.com
primary 158 0.0% 2026-06-29
GitLab
gitlab.com
primary 6 0.0% 2026-06-30
Walmart
walmart.com
primary 12 0.0% 2026-06-21
Scribd
scribd.com
primary 1 2026-05-31
Ft
ft.com
primary 50 0.0% 2026-06-28
Patreon
patreon.com
primary 58 0.0% 2026-06-30
Mlb
mlb.com
primary 3 0.0% 2026-06-12
Uber
uber.com
primary 106 0.8% 2026-06-30
Usps
usps.com
primary 219 0.0% 2026-06-30
Agora
agora.io
primary 1 2026-05-05
Rackspace
rackspace.com
primary 7 0.0% 2026-06-29
Dribbble
dribbble.com
primary 19 0.0% 2026-06-24
Idealista
idealista.com
primary 4 0.0% 2026-06-01
Usnews
usnews.com
primary 5 0.0% 2026-06-15
Fetlife
fetlife.com
primary 1 2026-05-05
Upwork
upwork.com
primary 67 0.0% 2026-06-29
Itch
itch.io
primary 1 2026-05-05
Olympics
olympics.com
primary 1 2026-05-12
Unc
unc.edu
primary 1 2026-05-26
Umd
umd.edu
primary 1 2026-05-06
Ycombinator
ycombinator.com
primary 8 0.0% 2026-06-28
Zapier
zapier.com
primary 170 0.0% 2026-06-30
Yumpu
yumpu.com
primary 2 2026-06-02
Fool
fool.com
primary 2 2026-06-10
Airtable
airtable.com
primary 56 0.0% 2026-06-30
Xero
xero.com
primary 79 1.6% 2026-06-30
Webgo
webgo.de
primary 3 0.0% 2026-06-05
Parsely
parsely.com
primary 13 0.0% 2026-06-17
Creditkarma
creditkarma.com
primary 72 0.0% 2026-06-29
Next
next.co.uk
primary 2 2026-06-26
Simplisafe
simplisafe.com
primary 2 2026-06-10
Razorpay
razorpay.com
primary 1 2026-05-05
Umass
umass.edu
primary 1 2026-05-12
Replit
replit.com
primary 14 0.0% 2026-06-30
Mailgun
mailgun.net
primary 16 0.0% 2026-06-25
Apartments
apartments.com
primary 15 0.0% 2026-06-25
Lyft
lyft.com
primary 8 0.0% 2026-06-24
Teachable
teachable.com
primary 4 0.0% 2026-05-07
Walmart
walmart.ca
primary 1 2026-05-06
Thinkific
thinkific.com
primary 25 0.0% 2026-06-28
Obsidian
obsidian.md
primary 1 2026-06-20
Powerschool
powerschool.com
primary 2 2026-06-10
Lever
lever.co
primary 95 0.0% 2026-06-29
Smartrecruiters
smartrecruiters.com
primary 16 0.0% 2026-06-21
Balena Cloud
balena-cloud.com
primary 1 2026-05-06
Compass
compass.com
primary 1 2026-05-04
Vivaldi
vivaldi.com
primary 6 0.0% 2026-06-24
Instant Gaming
instant-gaming.com
primary 1 2026-04-30
Bamboohr
bamboohr.com
primary 109 0.0% 2026-06-30
Biz
biz.ua
primary 2 2026-06-17
Bergfex
bergfex.at
primary 1 2026-05-28
Nextdirect
nextdirect.com
primary 1 2026-05-28
Geico
geico.com
primary 2 2026-06-04
Mxtoolbox
mxtoolbox.com
primary 51 0.0% 2026-06-30
Mn
mn.co
primary 52 0.0% 2026-06-24
Circleci
circleci.com
primary 2 2026-05-29
Avada
avada.io
primary 2 2026-06-24
Kiwi
kiwi.com
primary 1 0.0% 2026-05-15
Sinch
sinch.com
primary 2 0.0% 2026-06-29
Usepylon
usepylon.com
primary 7 0.0% 2026-06-23
Delfi
delfi.ee
primary 6 0.0% 2026-06-17
Smore
smore.com
primary 2 2026-06-21
Lovense
lovense.com
primary 5 0.0% 2026-06-21
Snyk
snyk.io
primary 1 2026-05-02
Gong
gong.io
primary 366 0.0% 2026-06-30
Canny
canny.io
primary 3 0.0% 2026-06-29
Planningcenteronline
planningcenteronline.com
primary 12 0.0% 2026-06-25
Simplilearn
simplilearn.com
primary 3 33% 2026-06-01
Yourstory
yourstory.com
primary 10 0.0% 2026-06-29
Solo
solo.to
primary 1 2026-06-26
Zennioptical
zennioptical.com
primary 3 0.0% 2026-06-11
Gleam
gleam.io
primary 1 2026-05-05
Withings
withings.com
primary 1 2026-06-03
Humanitix
humanitix.com
primary 2 2026-06-11
Recruitee
recruitee.com
primary 8 13% 2026-06-16
Pulsz
pulsz.com
primary 1 2026-06-25
Libanswers
libanswers.com
primary 2 2026-05-19
Tunnelbear
tunnelbear.com
primary 1 2023-03-16
Msci
msci.com
primary 3 0.0% 2026-06-11
Zenchef
zenchef.com
primary 6 0.0% 2026-06-12
Whop
whop.com
primary 94 1.4% 2026-06-30
Gohighlevel
gohighlevel.com
primary 23 9.5% 2026-06-30
Timedoctor
timedoctor.com
primary 3 0.0% 2026-05-25
Openrent
openrent.co.uk
primary 3 0.0% 2026-06-15
Boohoo
boohoo.com
primary 7 0.0% 2026-06-24
Circle
circle.so
primary 385 0.0% 2026-06-29
Sutterhealth
sutterhealth.org
primary 4 0.0% 2026-06-21
Smartsupp
smartsupp.com
primary 12 0.0% 2026-06-04
Sharkninja
sharkninja.com
primary 16 0.0% 2026-06-19
Mailgun
mailgun.com
primary 8 13% 2026-06-30
Cj
cj.com
primary 5 0.0% 2026-05-29
Smg
smg.com
primary 1 2026-06-15
Hellosign
hellosign.com
primary 93 0.0% 2026-06-29
Hero Sms
hero-sms.com
primary 2 2026-06-17
Crexi
crexi.com
primary 16 0.0% 2026-06-25
Cake
cake.me
primary 1 2026-06-23
Expensify
expensify.com
primary 6 0.0% 2026-06-30
Swapcard
swapcard.com
primary 2 2026-06-28
Prettylittlething
prettylittlething.com
primary 8 0.0% 2026-06-28
4kdownload
4kdownload.com
primary 3 2026-05-10
Showing the top 100 of 757 brands by observations · Show all

Sending IPs (top 25)

IPs we've observed sending via Mailgun. "Brands" = distinct brands seen on each IP; "Placement" = where those emails landed in Gmail (inbox / promotions / spam). Click "reputation" to check the IP on Cisco Talos.

IPHostnameBrandsObsPlacementReputation
69.72.39.39 v539.v52b565a7.use4.send.mailgun.net 1 366 74 Check →
69.72.36.48 v548.v5f1d441a.use4.send.mailgun.net 1 96 10 Check →
159.112.248.213 v5213.v5199064d.use4.send.mailgun.net 1 95 13 Check →
198.244.56.64 c64.c5341538.usw1.send.mailgun.net 1 85 7 Check →
159.135.230.15 v515.v5b53cb91.use4.send.mailgun.net 2 80 18 Check →
143.55.227.49 v549.v54f91261.use4.send.mailgun.net 1 74 13 Check →
161.38.192.92 v592.v56682d52.use4.send.mailgun.net 1 73 11 Check →
198.244.59.202 c202.c09224bb.usw1.send.mailgun.net 1 70 9 Check →
69.72.44.3 v53.v5e5d4d68.usw1.send.mailgun.net 1 67 3 Check →
161.38.192.97 v597.v56682d52.use4.send.mailgun.net 1 65 8 Check →
69.72.44.4 v54.v5e5d4d68.usw1.send.mailgun.net 1 65 11 Check →
143.55.224.63 v563.v5756819d.use4.send.mailgun.net 1 64 10 Check →
198.244.59.154 c154.c09224bb.usw1.send.mailgun.net 2 61 9 Check →
161.38.196.8 v58.v5ab752a9.usw1.send.mailgun.net 1 57 12 Check →
143.55.226.16 v516.v50879933.use4.send.mailgun.net 4 56 10 Check →
143.55.228.252 v5252.v560d213d.use4.send.mailgun.net 1 53 34 Check →
159.112.247.110 v5110.v5478dbc4.use4.send.mailgun.net 1 49 5 Check →
198.244.59.134 c134.c09224bb.usw1.send.mailgun.net 1 46 3 Check →
143.55.232.40 v540.v5f06b487.use4.send.mailgun.net 3 45 11 Check →
204.220.184.11 k11.kb8c70eb.use4.send.mailgun.net 2 44 15 Check →
161.38.196.35 v535.v5ab752a9.usw1.send.mailgun.net 1 43 9 Check →
159.112.249.76 v576.v5b2997a9.use4.send.mailgun.net 3 42 3 Check →
198.244.59.136 c136.c09224bb.usw1.send.mailgun.net 2 41 7 Check →
159.135.229.55 v555.v5cf3d2a7.use4.send.mailgun.net 1 41 26 Check →
198.244.59.200 c200.c09224bb.usw1.send.mailgun.net 1 40 6 Check →