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Clarks

clarks.com
🏆Rank #31,714 🏷 Retail 🇬🇧United Kingdom

Clarks uses Klaviyo as their primary email service provider. They rank #31,714 in the Tranco list of most-popular domains. Their email authentication setup is good (score 80/100).

Marketing ESPKlaviyo
Total observations6
Active days4
Avg per active day1.5
Last activity📬 Active · 5 days ago
Cadence~every 4 days
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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
one-click
SPF lookups 9/10

SPF / DKIM / DMARC above reflect the last 2 emails we've observed. DMARC policy is read live from DNS.

Authentication

DMARC enforced with p=quarantine — receivers actively reject or quarantine spoofed mail. No aggregate reporting destination configured.

SPF alignment: all 6 observed emails use a return-path aligned with clarks.com (k1.send.clarks.com). SPF authenticates the visible From — supports DMARC directly.

DKIM alignment: all 6 observed emails sign with a domain aligned with clarks.com (send.clarks.com). DKIM authenticates the visible From — supports DMARC directly.

Transport & deliverability

TLS: modern — 100% TLS 1.3 (across 5 sends).

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.

Klaviyo ✓ via SendGrid

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.

Amazon SES Elastic Email Microsoft 365 SendGrid

Probed: clarks.com, k1.send.clarks.com, m.clarks.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
promotions 5 100.0%

Where emails landed (Outlook)

Placement observed in Outlook / Microsoft 365 mailboxes. Focused Inbox splits mail into two tabs, "Focused" (inbox) and "Other", plus Junk. 100% reached the Focused inbox across 1 observed email.

Focused 100% (1) Junk 0% (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 %
Klaviyo 5
0.0% 100.0% 0.0%

ESP activity over time

Jun 11 – Jun 25, 2026 · 4 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.

2 0 Klaviyo: 2 (2026-06-11)2Klaviyo: 2 (2026-06-12)2Klaviyo: 1 (2026-06-22)1Klaviyo: 1 (2026-06-25)106/1106/1306/1506/1706/1906/2106/2306/25
Klaviyo

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Sending IPs

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

IPHostnameObsPlacementReputation
159.183.87.249 o3671.m.clarks.com 4 Check →
159.183.87.24 unknown 1 Check →
159.183.87.64 o3670.m.clarks.com 1 1 Check →

Sending domains

DomainESPs detectedDelivery (7d)
clarks.comKlaviyo 6