Gruns uses Klaviyo as their primary email service provider. They rank #240,173 in the Tranco list of most-popular domains. Their email authentication setup is good (score 80/100).
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 1 email we've observed. DMARC policy is read live from DNS.
DMARC reports sent to glockapps.com. Policy
p=quarantine means receivers actively block or quarantine spoofed mail.
SPF alignment: all 26 observed emails use a return-path aligned with gruns.co (k3.send.gruns.co, k1.send.gruns.co). SPF authenticates the visible From — supports DMARC directly.
DKIM alignment: all 10 observed emails sign with a domain aligned with gruns.co (send.gruns.co). DKIM authenticates the visible From — supports DMARC directly.
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: gruns.co, k1.send.gruns.co, k3.send.gruns.co
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 | 28.6% |
| promotions | 15 | 71.4% |
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 % |
|---|---|---|---|---|---|
| Klaviyo | 20 | 30.0% | 70.0% | 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 gruns.co has been observed sending from, and where their mail landed in Gmail.
| IP | Hostname | Obs | Placement | Reputation |
|---|---|---|---|---|
| 170.203.20.51 | kl-203-20-51.kmta.shared.klaviyomail.com |
6 | — | Check → |
| 170.203.27.80 | kl-203-27-80.kmta.shared.klaviyomail.com |
5 | — | Check → |
| 170.203.28.36 | kl-203-28-36.kmta.shared.klaviyomail.com |
4 | — | Check → |
| 149.72.233.124 | o1392.shared.klaviyomail.com |
2 | — | Check → |
| 170.203.20.2 | kl-203-20-2.kmta.shared.klaviyomail.com |
2 | 1 | Check → |
| 170.203.31.162 | kl-203-31-162.kmta.shared.klaviyomail.com |
2 | — | Check → |
| 170.203.16.2 | kl-203-16-2.kmta.shared.klaviyomail.com |
1 | — | Check → |
| 170.203.16.15 | kl-203-16-15.kmta.shared.klaviyomail.com |
1 | — | Check → |
| 170.203.20.221 | kl-203-20-221.kmta.shared.klaviyomail.com |
1 | — | Check → |
| 170.203.16.51 | kl-203-16-51.kmta.shared.klaviyomail.com |
1 | — | Check → |
| 170.203.24.2 | kl-203-24-2.kmta.shared.klaviyomail.com |
1 | — | Check → |
| 170.203.20.12 | kl-203-20-12.kmta.shared.klaviyomail.com |
1 | — | Check → |
| Domain | ESPs detected | Delivery (7d) |
|---|---|---|
gruns.co | Klaviyo 27 |