Trip uses Amazon SES as their primary email service provider. They rank #2,192 in the Tranco list of most-popular domains. Email goes out from 2 different subdomains. Their email authentication setup is solid (score 85/100).
Amazon SESAuthentication 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.
SPF / DKIM / DMARC above reflect the last 1 email we've observed. DMARC policy is read live from DNS.
DMARC reports sent to trip.com. Policy
p=reject means receivers actively block or quarantine spoofed mail.
SPF alignment: all 2 observed emails use a return-path aligned with trip.com (serve.trip.com). SPF authenticates the visible From — supports DMARC directly.
DKIM alignment: all 12 observed emails sign with a domain aligned with trip.com (trip.com). DKIM authenticates the visible From — supports DMARC directly.
Brands often use multiple ESPs (e.g. one for marketing, another for transactional/notifications).
None — only the primary ESP(s) shown aboveESPs 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.
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.
Probed: trip.com, serve.trip.com, newsletter.trip.com
Folder distribution across all emails from this brand observed in Gmail inboxes. High inbox % = good deliverability; spam appearances are the headline signal.
| Folder | Count | Share |
|---|---|---|
| inbox | 7 | 58.3% |
| promotions | 5 | 41.7% |
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 % |
|---|---|---|---|---|---|
| Amazon SES | 12 | 58.3% | 41.7% | 0.0% |
Daily observations per ESP. Brands often run multiple ESPs concurrently — marketing on one, transactional on another — so this chart shows usage rather than switches.
IP addresses trip.com has been observed sending from, and where their mail landed in Gmail.
| IP | Hostname | Obs | Placement | Reputation |
|---|---|---|---|---|
| 54.240.3.2 | a3-2.smtp-out.eu-west-1.amazonses.com |
3 | — | Check → |
| 23.251.232.54 | e232-54.smtp-out.ap-southeast-1.amazonses.com |
3 | — | Check → |
| 24.110.73.23 | i73-23.smtp-out.ap-southeast-2.amazonses.com |
2 | — | Check → |
| 54.240.3.1 | a3-1.smtp-out.eu-west-1.amazonses.com |
1 | — | Check → |
| 23.251.232.51 | e232-51.smtp-out.ap-southeast-1.amazonses.com |
1 | — | Check → |
| 54.240.3.19 | a3-19.smtp-out.eu-west-1.amazonses.com |
1 | — | Check → |
| 23.251.234.51 | e234-51.smtp-out.ap-northeast-1.amazonses.com |
1 | — | Check → |
| 69.169.224.56 | b224-56.smtp-out.eu-central-1.amazonses.com |
1 | 1 | Check → |
| Domain | ESPs detected | Delivery (7d) |
|---|---|---|
newsletter.trip.com | Amazon SES 11 | |
trip.com | Amazon SES 2 |
