Crumb uses Amazon SES as their primary email service provider. They rank #305,045 in the Tranco list of most-popular domains. Their email authentication setup is good (score 73/100). Missing: DMARC enforcement.
Amazon SESNon-ESP tools detected in this brand's emails. Independent of who sends — a brand can use any combination.
| HTML builder |
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.
DMARC published as p=none with no rua= reporting — monitor-only, and the sender isn't collecting reports either.
SPF alignment: observed emails use a third-party return-path (eu-west-1.amazonses.com) — SPF passes there but doesn't align with crumb.pet, so DMARC has to rely on DKIM alignment.
DKIM alignment: all 5 observed emails sign with a domain aligned with crumb.pet (crumb.pet). 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: crumb.pet, eu-west-1.amazonses.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 | 4 | 40.0% |
| promotions | 6 | 60.0% |
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 | 5 | 40.0% | 60.0% | 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 crumb.pet has been observed sending from, and where their mail landed in Gmail.
| IP | Hostname | Obs | Reputation |
|---|---|---|---|
| 54.240.6.18 | a6-18.smtp-out.eu-west-1.amazonses.com |
4 | Check → |
| 54.240.53.232 | a53-232.smtp-out.eu-west-1.amazonses.com |
2 | Check → |
| 54.240.6.154 | a6-154.smtp-out.eu-west-1.amazonses.com |
1 | Check → |
| 54.240.6.167 | a6-167.smtp-out.eu-west-1.amazonses.com |
1 | Check → |
| 54.240.6.26 | a6-26.smtp-out.eu-west-1.amazonses.com |
1 | Check → |
| 54.240.6.22 | a6-22.smtp-out.eu-west-1.amazonses.com |
1 | Check → |
Per-IP inbox / promotions / spam is being collected and will appear here as new emails are observed.
| Domain | ESPs detected | Delivery (7d) |
|---|---|---|
crumb.pet | Amazon SES 10 |
