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Duonet

duonet.fr
🏆Rank N/A 🏷 Telecom 🇫🇷France ✓ Inbox 100%

Duonet uses Mailchimp as their primary email service provider. Their email authentication setup is incomplete (score 58/100). Missing: DMARC enforcement, one-click unsubscribe.

Marketing ESPMailchimp
Total observations15
Active days6
Avg per active day2.5
Last activity📬 Active · 4 days ago
Cadence~weekly
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Compare Duonet with another brand:

Email setup 58/100

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.

Setup has gaps
Some authentication is missing or weak — receivers may give less benefit of the doubt.
58/100
SPF
pass
DKIM
pass
DMARC
pass (none)
BIMI
none
Unsubscribe
missing
SPF lookups 5/10

SPF / DKIM / DMARC above reflect the last 6 emails we've observed. DMARC policy is read live from DNS.

Authentication

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

SPF alignment: observed emails use a third-party return-path (mandrillapp.com) — SPF passes there but doesn't align with duonet.fr, so DMARC has to rely on DKIM alignment.

DKIM alignment: all 11 observed emails sign with a domain aligned with duonet.fr (duonet.fr). DKIM authenticates the visible From — supports DMARC directly.

Transport & deliverability

TLS: modern — 100% TLS 1.3 (across 6 sends).

Delivery: fast — 100% of emails in the last 7 days arrive in under 10 seconds (across 6 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.

Mailchimp ✓ via Mandrill

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.

Brevo Google Workspace Mandrill

Probed: duonet.fr, mandrillapp.com, mailer.duonet.fr

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 14 100.0%

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 %
Mailchimp 14
100.0% 0.0% 0.0%

ESP activity over time

Jun 1 – Jun 26, 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.

6 0 Mailchimp: 3 (2026-06-01)3Mailchimp: 6 (2026-06-26)606/0106/0406/0706/1006/1306/1606/1906/2206/25
Mailchimp

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Sending IPs

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

IPHostnameObsPlacementReputation
198.2.136.244 mailer.duonet.fr 15 5 Check →

Sending domains

DomainESPs detectedDelivery (7d)
duonet.frMailchimp 15