Nest uses Mailchimp as their primary email service provider. They're the #860,274 most-visited website overall, per Tranco (a web-popularity measure, not an email one). Email goes out from 2 different subdomains. Their email authentication setup is solid (score 85/100).
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.
SPF / DKIM / DMARC above reflect the last 8 emails we've observed. DMARC policy is read live from DNS.
DMARC reports sent to PowerDMARC. Policy
p=reject means receivers actively block or quarantine spoofed mail.
SPF alignment: observed emails use a third-party return-path (mandrillapp.com, mail49.suw11.mcdlv.net, mail98.atl51.rsgsv.net) — SPF passes there but doesn't align with nest.co.uk, so DMARC has to rely on DKIM alignment.
DKIM alignment: all 18 observed emails sign with a domain aligned with nest.co.uk (nest.co.uk, news.nest.co.uk). DKIM authenticates the visible From — supports DMARC directly.
TLS: modern — 100% TLS 1.3 (across 14 sends).
Delivery: fast — 100% of emails in the last 7 days arrive in under 10 seconds (across 6 sends).
Brands often use multiple ESPs (e.g. one for marketing, another for transactional/notifications).
None — only the primary ESP(s) shown aboveESPs 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: nest.co.uk, mandrillapp.com, mail49.suw11.mcdlv.net, mail73.atl11.rsgsv.net, mail98.atl51.rsgsv.net, news.nest.co.uk
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 | 3 | 17.6% |
| promotions | 14 | 82.4% |
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 | 17 | 17.6% | 82.4% | 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 nest.co.uk has been observed sending from, and where their mail landed in Gmail.
| IP | Hostname | Obs | Placement | Reputation |
|---|---|---|---|---|
| 198.2.137.22 | mail137-22.atl71.mandrillapp.com |
5 | — | Check → |
| 198.2.190.49 | mail49.suw11.mcdlv.net |
3 | — | Check → |
| 205.201.135.98 | mail98.atl51.rsgsv.net |
3 | 3 | Check → |
| 198.2.133.15 | mail133-15.atl131.mandrillapp.com |
2 | 2 | Check → |
| 198.2.180.48 | mail180-48.suw31.mandrillapp.com |
2 | 2 | Check → |
| 198.2.186.16 | mail186-16.suw21.mandrillapp.com |
1 | — | Check → |
| 205.201.133.73 | mail73.atl11.rsgsv.net |
1 | — | Check → |
| 198.2.128.13 | mail128-13.atl41.mandrillapp.com |
1 | 1 | Check → |