Transactional email API by Twilio. Free plan available.
SendGrid is the 1st most popular transactional ESP we track.
Detected by 495 distinct extension users.
Distribution of brands using SendGrid 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 1376 of 1703 brands tagged (81% 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 18,238 · promotions 1,183 · spam 230 (19,651 emails observed)
Percentages are averaged per brand (each counted once) across 541 brands using SendGrid with at least 5 placement observations each.
1,469 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 |
|---|---|---|---|---|
|
GitHub
github.com
|
primary | 7 | 0.0% | 2026-06-09 |
|
TikTok
tiktok.com
|
primary | 33 | 0.0% | 2026-06-30 |
|
Spotify
spotify.com
|
primary | 80 | 0.0% | 2026-06-27 |
|
Zoom
zoom.us
|
primary | 842 | 0.0% | 2026-06-30 |
|
Roblox
roblox.com
|
primary | 5 | 0.0% | 2026-06-20 |
|
Sentry
sentry.io
|
primary | 11 | 0.0% | 2026-06-25 |
|
Unity3d
unity3d.com
|
primary | 15 | 0.0% | 2026-06-29 |
|
Intuit
intuit.com
|
primary | 99 | 0.0% | 2026-06-28 |
|
Discord
discord.com
|
primary | 29 | 12% | 2026-06-29 |
|
Soundcloud
soundcloud.com
|
primary | 11 | 0.0% | 2026-06-26 |
|
Medium
medium.com
|
primary | 166 | 0.0% | 2026-06-30 |
|
Weather
weather.com
|
primary | 3 | 0.0% | 2026-06-22 |
|
eBay
ebay.com
|
primary | 33 | 0.0% | 2026-06-26 |
|
Bbc
bbc.co.uk
|
primary | 4 | — | 2026-06-25 |
|
Cisco
cisco.com
|
primary | 2 | — | 2026-06-24 |
|
Linktr
linktr.ee
|
primary | 3 | 0.0% | 2026-06-11 |
|
Openai
openai.com
|
primary | 205 | 0.0% | 2026-06-30 |
|
Booking
booking.com
|
primary | 46 | 0.0% | 2026-06-24 |
|
Hp
hp.com
|
primary | 1 | — | 2026-06-04 |
|
Autodesk
autodesk.com
|
primary | 1 | — | 2026-05-31 |
|
Etsy
etsy.com
|
primary | 146 | 0.0% | 2026-06-29 |
|
IBM
ibm.com
|
primary | 6 | 0.0% | 2026-06-19 |
|
Appsflyer
appsflyer.com
|
primary | 11 | 0.0% | 2026-06-11 |
|
Amplitude
amplitude.com
|
primary | 3 | 0.0% | 2026-05-17 |
|
Weebly
weebly.com
|
primary | 4 | 75% | 2026-05-20 |
|
Trustpilot
trustpilot.com
|
primary | 30 | 0.0% | 2026-06-29 |
|
Temu
temu.com
|
primary | 50 | 0.0% | 2026-06-30 |
Unsplash
unsplash.com
|
primary | 1 | — | 2026-05-26 |
|
Calendly
calendly.com
|
primary | 334 | 0.0% | 2026-06-30 |
|
Brave
brave.com
|
primary | 1 | — | 2026-05-10 |
|
T Mobile
t-mobile.com
|
primary | 13 | 0.0% | 2026-06-24 |
|
Hostgator
hostgator.com
|
primary | 2 | — | 2026-06-23 |
|
Okta
okta.com
|
primary | 76 | 1.6% | 2026-06-25 |
|
Capcut
capcut.com
|
primary | 1 | — | 2026-05-04 |
|
Surveymonkey
surveymonkey.com
|
primary | 16 | 0.0% | 2026-06-22 |
|
Cursor
cursor.sh
|
primary | 3 | — | 2026-06-24 |
|
Box
box.com
|
primary | 5 | 0.0% | 2026-06-08 |
|
Homedepot
homedepot.com
|
primary | 2 | — | 2026-06-05 |
|
Ring
ring.com
|
primary | 29 | 0.0% | 2026-06-29 |
|
Bandcamp
bandcamp.com
|
primary | 15 | 0.0% | 2026-06-23 |
|
Anthropic
anthropic.com
|
primary | 150 | 0.0% | 2026-06-29 |
|
Lefigaro
lefigaro.fr
|
primary | 1 | — | 2026-05-09 |
|
Figma
figma.com
|
primary | 410 | 0.0% | 2026-06-29 |
|
Onlyfans
onlyfans.com
|
primary | 5 | 0.0% | 2026-06-25 |
|
Ebay
ebay.co.uk
|
primary | 1 | — | 2026-05-06 |
|
Chess
chess.com
|
primary | 4 | 0.0% | 2026-06-27 |
|
Ebay
ebay.de
|
primary | 5 | 0.0% | 2026-04-29 |
|
Typeform
typeform.com
|
primary | 6 | 0.0% | 2026-06-22 |
|
Kickstarter
kickstarter.com
|
primary | 13 | 0.0% | 2026-06-25 |
|
Airbnb
airbnb.com
|
primary | 64 | 0.0% | 2026-06-28 |
|
Kleinanzeigen
kleinanzeigen.de
|
primary | 29 | 0.0% | 2026-06-20 |
|
Costco
costco.com
|
primary | 2 | 0.0% | 2026-05-21 |
|
Tesla
tesla.com
|
primary | 14 | 0.0% | 2026-06-26 |
|
Garmin
garmin.com
|
primary | 5 | 0.0% | 2026-06-12 |
|
Riotgames
riotgames.com
|
primary | 2 | — | 2026-06-03 |
|
Mercadolibre
mercadolibre.com.mx
|
primary | 2 | — | 2026-06-22 |
|
Psu
psu.edu
|
primary | 6 | 0.0% | 2026-06-21 |
|
Marktplaats
marktplaats.nl
|
primary | 1 | — | 2026-06-16 |
|
Statuspage
statuspage.io
|
primary | 44 | 0.0% | 2026-06-22 |
|
Twilio
twilio.com
|
primary | 22 | 0.0% | 2026-06-26 |
|
SendGrid
sendgrid.net
|
primary | 1 | — | 2026-05-12 |
|
Meetup
meetup.com
|
primary | 74 | 0.0% | 2026-06-29 |
|
Politico
politico.com
|
primary | 9 | 0.0% | 2026-06-15 |
|
Segment
segment.com
|
primary | 7 | 0.0% | 2026-06-24 |
|
Ahrefs
ahrefs.com
|
primary | 256 | 0.0% | 2026-06-29 |
|
Cookiebot
cookiebot.com
|
primary | 2 | 0.0% | 2026-06-03 |
|
Inc
inc.com
|
primary | 1 | — | 2026-06-09 |
|
Customer
customer.io
|
primary | 788 | 0.0% | 2026-06-30 |
|
Fullstory
fullstory.com
|
primary | 6 | 0.0% | 2026-06-15 |
|
Doordash
doordash.com
|
primary | 61 | 0.0% | 2026-06-29 |
|
Bunny
bunny.net
|
primary | 5 | 0.0% | 2026-06-13 |
|
Glassdoor
glassdoor.com
|
primary | 160 | 0.0% | 2026-06-30 |
|
Wetransfer
wetransfer.com
|
primary | 21 | 0.0% | 2026-06-23 |
|
Ringcentral
ringcentral.com
|
primary | 13 | 0.0% | 2026-06-26 |
|
Lastpass
lastpass.com
|
primary | 28 | 0.0% | 2026-06-26 |
|
Nubank
nubank.com.br
|
primary | 10 | 10% | 2026-06-29 |
|
Gotowebinar
gotowebinar.com
|
primary | 26 | 4.0% | 2026-06-30 |
|
Okx
okx.com
|
primary | 3 | 0.0% | 2026-06-25 |
|
Instacart
instacart.com
|
primary | 4 | 0.0% | 2026-06-05 |
|
Lg
lg.com
|
primary | 2 | — | 2026-06-18 |
|
Nextdoor
nextdoor.com
|
primary | 334 | 6.9% | 2026-06-29 |
|
Cookieyes
cookieyes.com
|
primary | 2 | — | 2026-06-18 |
|
Podbean
podbean.com
|
primary | 4 | 0.0% | 2026-06-18 |
|
Yotpo
yotpo.com
|
primary | 27 | 0.0% | 2026-06-29 |
|
Robinhood
robinhood.com
|
primary | 36 | 0.0% | 2026-06-27 |
|
Affirm
affirm.com
|
primary | 19 | 0.0% | 2026-06-27 |
|
Instructables
instructables.com
|
primary | 1 | — | 2026-05-10 |
|
Utah
utah.edu
|
primary | 1 | — | 2026-05-20 |
|
Toasttab
toasttab.com
|
primary | 7 | 0.0% | 2026-06-24 |
|
Namecheap
namecheap.com
|
primary | 38 | 0.0% | 2026-06-30 |
|
Nianticlabs
nianticlabs.com
|
primary | 1 | — | 2026-06-25 |
|
Ko Fi
ko-fi.com
|
primary | 2 | — | 2026-05-22 |
|
Postman
postman.com
|
primary | 2 | — | 2026-06-16 |
|
Dashlane
dashlane.com
|
primary | 3 | 0.0% | 2026-06-22 |
|
Aa
aa.com
|
primary | 8 | 0.0% | 2026-06-15 |
|
Bitly
bitly.com
|
primary | 48 | 0.0% | 2026-06-29 |
|
Mux
mux.com
|
primary | 2 | 0.0% | 2026-06-04 |
|
Seek
seek.com.au
|
primary | 21 | 0.0% | 2026-06-07 |
|
Bitwarden
bitwarden.com
|
primary | 9 | 0.0% | 2026-06-23 |
|
Dev
dev.to
|
primary | 27 | 0.0% | 2026-06-18 |
IPs we've observed sending via SendGrid. "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 |
|---|---|---|---|---|---|
| 159.183.125.42 | wfbttdnx.outbound-mail.sendgrid.net |
2 | 730 | 62 | Check → |
| 159.183.224.123 | wfbtzhtb.outbound-mail.sendgrid.net |
1 | 119 | 27 | Check → |
| 168.245.25.177 | xvfrkwbk.outbound-mail.sendgrid.net |
1 | 115 | 9 | Check → |
| 159.183.98.243 | wfbtsnfp.outbound-mail.sendgrid.net |
1 | 111 | 18 | Check → |
| 149.72.44.169 | o1.ptr7400.skool.com |
1 | 100 | 21 | Check → |
| 134.128.101.124 | o1.ptr5683.lunacal.live |
1 | 100 | 14 | Check → |
| 198.37.145.138 | o83.email.rs.nextdoor.co.uk |
1 | 90 | 17 | Check → |
| 167.89.54.231 | o18.email.rs.nextdoor.co.uk |
1 | 86 | 17 | Check → |
| 149.72.216.165 | wrqvdvxr.outbound-mail.sendgrid.net |
1 | 86 | 15 | Check → |
| 167.89.79.69 | xtrwqfqr.outbound-mail.sendgrid.net |
1 | 85 | 17 | Check → |
| 159.183.19.226 | o2.ptr677.skool.com |
1 | 83 | 15 | Check → |
| 149.72.115.76 | o5.ptr4111.analystratings.net |
1 | 80 | 4 | Check → |
| 167.89.41.131 | o19.email.rs.nextdoor.co.uk |
1 | 79 | 14 | Check → |
| 149.72.123.226 | wrqvtbzn.outbound-mail.sendgrid.net |
1 | 78 | 7 | Check → |
| 159.183.153.36 | wfbtwwnq.outbound-mail.sendgrid.net |
1 | 77 | 6 | Check → |
| 167.89.25.189 | o1.ptr8239.analystratings.net |
1 | 77 | 5 | Check → |
| 167.89.37.168 | o2.ptr7870.analystratings.net |
1 | 75 | 4 | Check → |
| 159.183.113.17 | wfbttkkk.outbound-mail.sendgrid.net |
1 | 68 | 10 | Check → |
| 167.89.88.28 | o3.ptr6855.skool.com |
1 | 66 | 5 | Check → |
| 167.89.37.23 | o3.ptr5275.analystratings.net |
1 | 66 | 2 | Check → |
| 149.72.196.77 | wrqvcqqd.outbound-mail.sendgrid.net |
1 | 65 | 4 | Check → |
| 149.72.207.31 | o7.ptr8148.analystratings.net |
1 | 64 | 5 | Check → |
| 159.183.72.231 | o6.ptr3015.analystratings.net |
1 | 64 | 5 | Check → |
| 159.183.222.82 | wfbtdzrn.outbound-mail.sendgrid.net |
1 | 63 | 11 | Check → |
| 167.89.75.236 | o1678975x236.outbound-mail.sendgrid.net |
1 | 62 | 8 | Check → |