Cottonbureau uses Mailchimp for marketing email and Amazon SES for transactional/notifications. They rank #290,897 in the Tranco list of most-popular domains. Their email authentication setup is good (score 70/100). Missing: one-click unsubscribe.
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 10 emails we've observed. DMARC policy is read live from DNS.
DMARC reports sent to Postmark DMARC. Policy
p=reject means receivers actively block or quarantine spoofed mail.
SPF alignment: all 27 observed emails use a return-path aligned with cottonbureau.com (plunk.cottonbureau.com, return-path.cottonbureau.com). SPF authenticates the visible From — supports DMARC directly.
DKIM alignment: all 27 observed emails sign with a domain aligned with cottonbureau.com (cottonbureau.com). DKIM authenticates the visible From — supports DMARC directly.
TLS: modern — 100% TLS 1.3 (across 19 sends).
Delivery: fast — 100% of emails in the last 7 days arrive in under 10 seconds (across 13 sends).
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: cottonbureau.com, plunk.cottonbureau.com, return-path.cottonbureau.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 | 24 | 100.0% |
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 | 21 | 100.0% | 0.0% | 0.0% | |
| Mailchimp | 3 | 100.0% | 0.0% | 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 cottonbureau.com has been observed sending from, and where their mail landed in Gmail.
| IP | Hostname | Obs | Placement | Reputation |
|---|---|---|---|---|
| 54.240.9.114 | a9-114.smtp-out.amazonses.com |
3 | 2 | Check → |
| 54.240.9.32 | a9-32.smtp-out.amazonses.com |
3 | 2 | Check → |
| 54.240.9.30 | a9-30.smtp-out.amazonses.com |
3 | 2 | Check → |
| 54.240.9.92 | a9-92.smtp-out.amazonses.com |
2 | 1 | Check → |
| 54.240.9.31 | a9-31.smtp-out.amazonses.com |
2 | 1 | Check → |
| 54.240.9.99 | a9-99.smtp-out.amazonses.com |
2 | 1 | Check → |
| 54.240.9.46 | a9-46.smtp-out.amazonses.com |
2 | 2 | Check → |
| 54.240.9.33 | a9-33.smtp-out.amazonses.com |
1 | — | Check → |
| 54.240.9.35 | a9-35.smtp-out.amazonses.com |
1 | — | Check → |
| 54.240.9.54 | a9-54.smtp-out.amazonses.com |
1 | — | Check → |
| 54.240.9.37 | a9-37.smtp-out.amazonses.com |
1 | — | Check → |
| 198.2.187.4 | mail187-4.suw11.mandrillapp.com |
1 | 1 | Check → |
| 198.2.133.27 | mail133-27.atl131.mandrillapp.com |
1 | 1 | Check → |
| 198.2.134.21 | mail134-21.atl141.mandrillapp.com |
1 | 1 | Check → |
| 198.2.133.2 | mail133-2.atl131.mandrillapp.com |
1 | — | Check → |
| 198.2.136.22 | mail136-22.atl41.mandrillapp.com |
1 | — | Check → |
| 198.2.145.12 | mail145-12.atl61.mandrillapp.com |
1 | — | Check → |
| Domain | ESPs detected | Delivery (7d) |
|---|---|---|
cottonbureau.com | Amazon SES 21 Mailchimp 6 |