Chartmogul uses Customer.io for marketing email and Amazon SES for transactional/notifications. They rank #192,017 in the Tranco list of most-popular domains. Their email authentication setup is good (score 73/100). Missing: DMARC enforcement. We've recorded 2 ESP changes since first observing this brand.
Amazon SESNon-ESP tools detected in this brand's emails. Independent of who sends — a brand can use any combination.
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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.
SPF / DKIM / DMARC above reflect the last 10 emails we've observed. DMARC policy is read live from DNS.
DMARC reports sent to cloudflare.net. Policy
p=none is monitor-only — receivers won't act on spoofing yet.
SPF alignment: all 38 observed emails use a return-path aligned with chartmogul.com (cioeu78765.chartmogul.com, sesout.chartmogul.com). SPF authenticates the visible From — supports DMARC directly.
DKIM alignment: all 34 observed emails sign with a domain aligned with chartmogul.com (cioeu78765.chartmogul.com, chartmogul.com). DKIM authenticates the visible From — supports DMARC directly.
TLS: 32% TLS 1.3, 68% TLS 1.2 (across 22 sends).
Delivery: fast — 100% of emails in the last 7 days arrive in under 10 seconds (across 6 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: chartmogul.com, cioeu78765.chartmogul.com, sesout.chartmogul.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 | 38 | 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 | 6 | 100.0% | 0.0% | 0.0% | |
| Customer.io | 30 | 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 chartmogul.com has been observed sending from, and where their mail landed in Gmail.
| IP | Hostname | Obs | Placement | Reputation |
|---|---|---|---|---|
| 143.55.239.106 | v5106.v5a39be5d.euw1.send.eu.mailgun.net |
17 | 7 | Check → |
| 143.55.239.109 | v5109.v5a39be5d.euw1.send.eu.mailgun.net |
16 | 4 | Check → |
| 54.240.4.22 | a4-22.smtp-out.eu-west-1.amazonses.com |
2 | 2 | Check → |
| 54.240.4.24 | a4-24.smtp-out.eu-west-1.amazonses.com |
2 | 2 | Check → |
| 54.240.4.25 | a4-25.smtp-out.eu-west-1.amazonses.com |
1 | 1 | Check → |
| 54.240.4.14 | a4-14.smtp-out.eu-west-1.amazonses.com |
1 | — | Check → |
| 54.240.4.23 | a4-23.smtp-out.eu-west-1.amazonses.com |
1 | 1 | Check → |
| Domain | ESPs detected | Delivery (7d) |
|---|---|---|
chartmogul.com | Customer.io 33 Amazon SES 7 |