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Mailersend is the 13th most popular transactional ESP we track.
Detected by 35 distinct extension users.
Distribution of brands using Mailersend 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 13 of 19 brands tagged (68% 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 203 · promotions 7 · spam 3 (213 emails observed)
Percentages are averaged per brand (each counted once) across 7 brands using Mailersend with at least 5 placement observations each.
14 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 |
|---|---|---|---|---|
|
Zeald
zeald.com
|
primary | 1 | — | 2026-05-06 |
|
Mailersend
mailersend.com
|
primary | 5 | 0.0% | 2026-06-17 |
|
Foursquare
foursquare.org
|
primary | 2 | — | 2026-05-07 |
|
24 7fitness
24-7fitness.ee
|
primary | 1 | — | 2026-06-16 |
|
50plusmobiel
50plusmobiel.nl
|
primary | 1 | — | 2026-05-01 |
|
Ecommerce Today
ecommerce-today.com
|
primary | 17 | 0.0% | 2026-06-17 |
|
Funduszowe
funduszowe.pl
|
primary | 9 | 0.0% | 2026-06-30 |
|
Jansteinhauserstudio
jansteinhauserstudio.com
|
primary | 2 | — | 2026-05-14 |
|
Kakiyo
kakiyo.com
|
primary | 1 | — | 2026-05-10 |
|
Nanoformula
nanoformula.eu
|
primary | 3 | 0.0% | 2026-06-17 |
|
Narragansettbeer
narragansettbeer.com
|
primary | 2 | — | 2026-05-06 |
|
Realstreet
realstreet.com
|
primary | 4 | 0.0% | 2026-05-05 |
|
Rhoelect
rhoelect.gr
|
primary | 1 | — | 2026-05-04 |
|
Whispertranscribe
whispertranscribe.ai
|
primary | 1 | — | 2026-05-01 |
|
MailerLite
mailerlite.com
|
secondary | 30 | 2.6% | 2026-06-26 |
|
Keitaro
keitaro.io
|
secondary | 1 | 0.0% | 2026-06-07 |
|
Otterly
otterly.ai
|
secondary | 4 | 0.0% | 2026-06-25 |
|
Mailercheck
mailercheck.com
|
secondary | 2 | 0.0% | 2026-06-09 |
|
Zendepot
zendepot.de
|
secondary | 1 | 0.0% | 2026-06-16 |
IPs we've observed sending via Mailersend. "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 |
|---|---|---|---|---|---|
| 212.11.79.147 | mail147.mailersend.net |
1 | 14 | 2 | Check → |
| 212.11.79.129 | mail129.mailersend.net |
4 | 11 | 1 | Check → |
| 212.11.79.150 | mail150.mailersend.net |
2 | 8 | — | Check → |
| 212.11.79.132 | mail132.mailersend.net |
4 | 7 | 1 | Check → |
| 212.11.79.149 | mail149.mailersend.net |
1 | 7 | 1 | Check → |
| 212.11.79.133 | mail133.mailersend.net |
3 | 6 | — | Check → |
| 212.11.79.128 | mail128.mailersend.net |
3 | 5 | — | Check → |
| 212.11.79.130 | mail130.mailersend.net |
2 | 4 | — | Check → |
| 212.11.79.131 | mail131.mailersend.net |
2 | 4 | 1 | Check → |
| 51.161.78.140 | justlistedalexandria.com |
1 | 4 | — | Check → |
| 212.11.79.135 | mail135.mailersend.net |
2 | 3 | — | Check → |
| 212.11.79.148 | mail148.mailersend.net |
1 | 3 | — | Check → |
| 51.68.3.72 | trip-troy.saudi-tc.com |
1 | 2 | — | Check → |
| 212.11.79.160 | mail160.mailersend.net |
1 | 2 | — | Check → |
| 15.235.28.25 | noon-freeway.jansteinhauserstudio.com |
1 | 2 | — | Check → |
| 51.68.66.233 | she-wide.noithathottrend.com |
1 | 2 | — | Check → |
| 74.63.218.194 | pokerplatform.thedeanpoker.com |
1 | 1 | — | Check → |
| 51.38.27.178 | revoke.sebjeff.com |
1 | 1 | — | Check → |