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Checkbox

checkbox.ua
🏆Rank #106,960 🏷 SaaS 🇺🇦Ukraine

Checkbox uses SendPulse as their primary email service provider. They rank #106,960 in the Tranco list of most-popular domains. Their email authentication setup is good (score 80/100).

Marketing ESPSendPulse
Total observations4
Active days3
Avg per active day1.3
Last activity📬 Active · 13 days ago
Cadence~weekly
Compare Checkbox 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
one-click
SPF lookups 9/10

SPF / DKIM / DMARC above reflect the last 1 email 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.

DKIM alignment: all 4 observed emails sign with a domain aligned with checkbox.ua (checkbox.ua). 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.

SendPulse ✓ 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.

Google Workspace Mailgun

Probed: checkbox.ua

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 3 75.0%
promotions 1 25.0%

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 %
SendPulse 4
75.0% 25.0% 0.0%

ESP activity over time

Jun 2 – Jun 17, 2026 · 2 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 SendPulse: 2 (2026-06-02)2SendPulse: 1 (2026-06-17)106/0206/0406/0606/0806/1006/1206/1406/16
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SendPulse

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Sending IPs

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

IPHostnameObsPlacementReputation
195.191.65.26 mx268.pulsesmtp.com 3 Check →
195.191.65.52 mx310.pulsesmtp.com 1 1 Check →

Sending domains

DomainESPs detectedDelivery (7d)
checkbox.uaSendPulse 4