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Fdske

fdske.com
🏆Rank #41,917 🏷 Other

Fdske uses Amazon SES as their primary email service provider. They rank #41,917 in the Tranco list of most-popular domains. We've also observed sends via SendGrid. Email goes out from 2 different subdomains. Their email authentication setup is good (score 73/100). Missing: DMARC enforcement.

Transactional ESPAmazon SES
Total observations2
Active days2
Avg per active day1.0
Last activity💤 Dormant · 5 weeks ago
Cadence~every 2 weeks
Compare Fdske with another brand:

Email setup 73/100

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.
73/100
SPF
pass
DKIM
pass
DMARC
pass (none)
BIMI
none
Unsubscribe
one-click
SPF lookups 4/10
Authentication

DMARC reports sent to dmarc-report.com. Policy p=none is monitor-only — receivers won't act on spoofing yet.

SPF alignment: all 1 observed email use a return-path aligned with fdske.com (fdesp.wq5sde.fi28.fdske.com). SPF authenticates the visible From — supports DMARC directly.

DKIM alignment: all 1 observed email sign with a domain aligned with fdske.com (wq5sde.fi28.fdske.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).

SendGrid 1

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.

Amazon SES ✓ confirmed SendGrid ✓ confirmed

Other SPF authorizations

No additional ESPs authorized in the brand's SPF beyond the confirmed senders above.

Probed: fdske.com, fdesp.wq5sde.fi28.fdske.com, cbp48d.fj68.fdske.com, wq5sde.fi28.fdske.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 1 50.0%
promotions 1 50.0%

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 %
SendGrid 1
0.0% 100.0% 0.0%

ESP activity over time

May 1 – May 25, 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.

1 0 Amazon SES: 1 (2026-05-01)1SendGrid: 1 (2026-05-25)105/0105/0405/0705/1005/1305/1605/1905/2205/25
Amazon SES SendGrid

Similar brands using Amazon SES

Sending IPs

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

IPHostnameObsReputation
54.240.64.24 a64-24.smtp-out.amazonses.com 1 Check →
149.72.64.147 o6.sg.m.flodesk.com 1 Check →

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

Sending domains

DomainESPs detectedDelivery (7d)
cbp48d.fj68.fdske.comAmazon SES 1
wq5sde.fi28.fdske.comSendGrid 1