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Prospeo

prospeo.io
🏆Rank #98,622

Prospeo uses Mailgun as their primary email service provider. They rank #98,622 in the Tranco list of most-popular domains. Their email authentication setup is good (score 73/100). Missing: DMARC enforcement, one-click unsubscribe.

Transactional ESPMailgun
Total observations1
Active days1
Avg per active day1.0
Last activity💤 Dormant · 8 weeks ago
Cadenceone-off
Compare Prospeo 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
missing
SPF lookups 6/10
Authentication

DMARC published as p=none with no rua= reporting — monitor-only, and the sender isn't collecting reports either.

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

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

Probed: prospeo.io, news.prospeo.io

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
spam 1 100.0%

ESP activity over time

May 9 – May 9, 2026 · 1 day 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 (2026-05-09)105/09
Mailgun

Similar brands using Mailgun

Sending IPs

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

IPHostnameObsReputation
69.72.43.13 v513.v5c0b6788.use4.send.mailgun.net 1 Check →

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

Sending domains

DomainESPs detectedDelivery (7d)
news.prospeo.ioMailgun 1