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Cj

cj.com
🏆Rank #23,267 🏷 Marketing & Agencies 🇺🇸United States

Cj uses Mailgun as their primary email service provider. They rank #23,267 in the Tranco list of most-popular domains. Email goes out from 2 different subdomains. Their email authentication setup is good (score 80/100). Missing: one-click unsubscribe.

Transactional ESPMailgun
Total observations5
Active days5
Avg per active day1.0
Last activity💤 Dormant · 5 weeks ago
Cadence~every 2 weeks
Compare Cj with another brand:

Email setup 80/100

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.

Solid setup, room to improve
Most authentication signals are present. A couple of pieces would tighten things up.
80/100
SPF
pass
DKIM
pass
DMARC
pass (quarantine)
BIMI
none
Unsubscribe
missing
SPF lookups 10/10
Authentication

DMARC reports sent to vali.email. Policy p=quarantine means receivers actively block or quarantine spoofed mail.

SPF alignment: all 1 observed email use a return-path aligned with cj.com (cj.com). SPF authenticates the visible From — supports DMARC directly.

DKIM alignment: all 3 observed emails sign with a domain aligned with cj.com (cj.com). DKIM authenticates the visible From — supports DMARC directly.

Other ESPs detected

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

None — only the primary ESP(s) shown above

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

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.

Adobe Campaign Marketo Microsoft 365 Salesforce MC

Probed: cj.com, mx6.cj.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 4 100.0%

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 %
Mailgun 4
100.0% 0.0% 0.0%

ESP activity over time

May 22 – May 29, 2026 · 3 days with sends

Daily 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 Mailgun: 1 (2026-05-22)1Mailgun: 1 (2026-05-25)1Mailgun: 1 (2026-05-29)105/2205/2305/2405/2505/2605/2705/2805/29
Mailgun

Similar brands using Mailgun

Sending IPs

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

IPHostnameObsReputation
159.135.237.89 v589.v5ebe2343.usw1.send.mailgun.net 2 Check →
159.135.237.86 v586.v5ebe2343.usw1.send.mailgun.net 2 Check →

Per-IP inbox / promotions / spam is being collected and will appear here as new emails are observed.

Sending domains

DomainESPs detectedDelivery (7d)
cj.comMailgun 4
mx6.cj.comMailgun 1