Ultrahuman uses Mailchimp as their primary email service provider. They rank #34,456 in the Tranco list of most-popular domains. We've also observed sends via HubSpot. Their email authentication setup is good (score 73/100). Missing: DMARC enforcement. We've recorded 1 ESP change since first observing this brand.
Non-ESP tools detected in this brand's emails. Independent of who sends — a brand can use any combination.
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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.
DMARC published as p=none with no rua= reporting — monitor-only, and the sender isn't collecting reports either.
SPF alignment: 50% of observed emails use an aligned return-path (45759574m.ultrahuman.com); the rest use third-party paths (mandrillapp.com) where DMARC has to rely on DKIM alignment.
DKIM alignment: all 6 observed emails sign with a domain aligned with ultrahuman.com (ultrahuman.com, 45759574m.ultrahuman.com). DKIM authenticates the visible From — supports DMARC directly.
Brands often use multiple ESPs (e.g. one for marketing, another for transactional/notifications).
HubSpot 3ESPs 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.
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.
Probed: ultrahuman.com, mandrillapp.com, 45759574m.ultrahuman.com
Folder distribution across all emails from this brand observed in Gmail inboxes. High inbox % = good deliverability; spam appearances are the headline signal.
| Folder | Count | Share |
|---|---|---|
| inbox | 6 | 100.0% |
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 % |
|---|---|---|---|---|---|
| HubSpot | 3 | 100.0% | 0.0% | 0.0% | |
| Mailchimp | 3 | 100.0% | 0.0% | 0.0% |
Daily observations per ESP. Brands often run multiple ESPs concurrently — marketing on one, transactional on another — so this chart shows usage rather than switches.
IP addresses ultrahuman.com has been observed sending from, and where their mail landed in Gmail.
| IP | Hostname | Obs | Reputation |
|---|---|---|---|
| 198.2.136.25 | mail136-25.atl41.mandrillapp.com |
3 | Check → |
| 108.179.152.114 | 4f2pdw.45759574m.ultrahuman.com |
3 | Check → |
Per-IP inbox / promotions / spam is being collected and will appear here as new emails are observed.
