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Mailgun is the 3rd most popular transactional ESP we track.
Detected by 396 distinct extension users.
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.
Based on 606 of 757 brands tagged (80% coverage). Industries assigned automatically using AI; not every brand is tagged yet.
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.
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.
639 as their primary ESP, the rest send transactional or secondary email through it. Primary users are listed first, then secondary.
| 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 |
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.
| IP | Hostname | Brands | Obs | Placement | Reputation |
|---|---|---|---|---|---|
| 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 → |