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Kiwi

kiwi.com
🏆Rank #10,988 🏷 Travel 🇨🇿Czechia

Kiwi uses Mailchimp for marketing email and Mailgun for transactional/notifications. They rank #10,988 in the Tranco list of most-popular domains. We've also observed sends via SendGrid. Their email authentication setup is solid (score 85/100). Missing: one-click unsubscribe.

Marketing ESPMailchimp
Transactional ESPMailgun
Total observations3
Active days3
Avg per active day1.0
Last activity📬 Active · 13 days ago
Cadence~every 9 months
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Email setup 85/100

Authentication signals observed in this brand's emails. SPF, DKIM and DMARC are the standard sender-authentication stack — see the DMARC policy below for whether spoofing is actually blocked or just monitored. One-click unsubscribe meets Google & Yahoo's bulk-sender requirements.

Strong email setup
Authentication is in good shape — SPF, DKIM, and DMARC enforcement all configured.
85/100
SPF
pass
DKIM
pass
DMARC
pass (reject)
BIMI
verified VMC
Unsubscribe
missing
SPF lookups 8/10

SPF / DKIM / DMARC above reflect the last 1 email we've observed. DMARC policy is read live from DNS.

Authentication

DMARC reports sent to mailkit.com. Policy p=reject means receivers actively block or quarantine spoofed mail.

SPF alignment: 67% of observed emails use an aligned return-path (txn-mg.kiwi.com, em9089.kiwi.com); the rest use third-party paths (mandrillapp.airhelp.com) where DMARC has to rely on DKIM alignment.

DKIM alignment: all 2 observed emails sign with a domain aligned with kiwi.com (kiwi.com). DKIM authenticates the visible From — supports DMARC directly.

Brand visibility

VMC issued by: digicert.

Other ESPs detected

Brands often use multiple ESPs (e.g. one for marketing, another for transactional/notifications).

SendGrid 1

Confirmed senders

ESPs we've seen sending email for this brand. Green = confirmed by SPF, sender IP rDNS, or known infra pairing (label shows the source). Grey = observed but not yet confirmed by SPF or PTR.

Mailgun ✓ confirmed SendGrid ✓ confirmed

Other SPF authorizations

ESPs this brand has authorized in their SPF record. We confirm them with a green ✓ only after seeing recurring use (3+ emails across 2+ days). Until then they stay here — either we haven't observed any email yet, or we've seen a handful but not enough to call them a regular sender for the brand.

Mandrill

Probed: kiwi.com, txn-mg.kiwi.com, mandrillapp.airhelp.com, em9089.kiwi.com, ptr2806.kiwi.com

Where emails landed (Gmail)

Folder distribution across all emails from this brand observed in Gmail inboxes. High inbox % = good deliverability; spam appearances are the headline signal.

FolderCountShare
inbox 3 100.0%

Placement by ESP

Which ESP's emails are landing where. Sorted by spam % so problem senders surface first. Brands using one ESP for marketing and another for transactional often see very different placement profiles per ESP. Per-ESP folder data only started being captured recently — counts here may be smaller than the total above until backfill catches up.

ESP Emails Placement Inbox % Tabs % Spam %
Mailchimp 1
100.0% 0.0% 0.0%
Mailgun 1
100.0% 0.0% 0.0%
SendGrid 1
100.0% 0.0% 0.0%

ESP activity over time

Apr 1, 2024 – Jun 1, 2026 · 3 months with sends

Monthly observations per ESP. Brands often run multiple ESPs concurrently — marketing on one, transactional on another — so this chart shows usage rather than switches.

1 0 SendGrid: 1 (2024-04)1Mailgun: 1 (2026-05)1Mailchimp: 1 (2026-06)1Apr '24Jul '24Oct '24Jan '25Apr '25Jul '25Oct '25Jan '26Apr '26Jun '26
Mailgun Mailchimp SendGrid

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Sending IPs

IP addresses kiwi.com has been observed sending from, and where their mail landed in Gmail.

IPHostnameObsPlacementReputation
161.38.206.211 v5211.v5e838360.euw1.send.eu.mailgun.net 1 Check →
198.2.178.51 mail178-51.suw51.mandrillapp.com 1 Check →
168.245.50.187 o4.ptr2806.kiwi.com 1 1 Check →

Sending domains

DomainESPs detectedDelivery (7d)
kiwi.comMailgun 1 Mailchimp 1 SendGrid 1