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Mailtrap is the 17th most popular transactional ESP we track.
Detected by 27 distinct extension users.
Distribution of brands using Mailtrap 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 6 of 7 brands tagged (86% 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 166 · promotions 7 (173 emails observed)
Percentages are averaged per brand (each counted once) across 2 brands using Mailtrap with at least 5 placement observations each.
5 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 |
|---|---|---|---|---|
|
2captcha
2captcha.com
|
primary | 1 | — | 2026-06-30 |
|
Mailtrap
mailtrap.io
|
primary | 8 | 0.0% | 2026-06-18 |
|
Getrecall
getrecall.ai
|
primary | 1 | — | 2026-05-25 |
|
Vollna
vollna.com
|
primary | 1 | — | 2026-06-22 |
|
Uptrusting
uptrusting.com
|
primary | 4 | 0.0% | 2026-06-29 |
|
Tooltester
tooltester.com
|
secondary | 36 | 0.0% | 2026-06-29 |
|
Escapethecity
escapethecity.org
|
secondary | 3 | 0.0% | 2026-06-24 |
IPs we've observed sending via Mailtrap. "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 |
|---|---|---|---|---|---|
| 45.158.83.28 | smtp-83-28.mailtrap.live |
1 | 10 | — | Check → |
| 45.158.83.1 | smtp-83-1.mailtrap.live |
1 | 8 | 2 | Check → |
| 45.158.83.3 | smtp-83-3.mailtrap.live |
3 | 5 | — | Check → |
| 45.158.83.27 | smtp-83-27.mailtrap.live |
2 | 5 | — | Check → |
| 45.158.83.25 | smtp-83-25.mailtrap.live |
2 | 5 | — | Check → |
| 45.158.83.7 | smtp-83-7.mailtrap.live |
1 | 4 | 1 | Check → |
| 45.158.83.6 | smtp-83-6.mailtrap.live |
2 | 3 | 2 | Check → |
| 45.158.83.8 | smtp-83-8.mailtrap.live |
1 | 3 | 2 | Check → |
| 45.158.83.2 | smtp-83-2.mailtrap.live |
1 | 3 | — | Check → |
| 45.158.83.4 | smtp-83-4.mailtrap.live |
2 | 2 | — | Check → |
| 45.158.83.73 | smtp-83-73.mailtrap.live |
1 | 1 | — | Check → |
| 45.158.83.5 | smtp-83-5.mailtrap.live |
1 | 1 | — | Check → |
| 45.158.83.11 | smtp-83-11.mailtrap.live |
1 | 1 | 1 | Check → |