Mercury uses Mailgun as their primary email service provider. They rank #34,107 in the Tranco list of most-popular domains. Their email authentication setup is solid (score 100/100). Missing: one-click unsubscribe.
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 5 emails we've observed. DMARC policy is read live from DNS.
DMARC reports sent to DMARC Digests. Policy
p=reject means receivers actively block or quarantine spoofed mail.
SPF alignment: all 36 observed emails use a return-path aligned with mercury.com (mg.mercury.com). SPF authenticates the visible From — supports DMARC directly.
DKIM alignment: all 37 observed emails sign with a domain aligned with mercury.com (mg.mercury.com, mercury.com). DKIM authenticates the visible From — supports DMARC directly.
TLS: 7% TLS 1.3, 93% TLS 1.2 (across 14 sends).
Delivery: fast — 100% of emails in the last 7 days arrive in under 10 seconds (across 4 sends).
Brands often use multiple ESPs (e.g. one for marketing, another for transactional/notifications).
Zendesk 1ESPs 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: mercury.com, mg.mercury.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 | 21 | 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 % |
|---|---|---|---|---|---|
| Mailgun | 19 | 100.0% | 0.0% | 0.0% | |
| Zendesk | 1 | 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 mercury.com has been observed sending from, and where their mail landed in Gmail.
| IP | Hostname | Obs | Placement | Reputation |
|---|---|---|---|---|
| 159.112.248.36 | v536.v5199064d.use4.send.mailgun.net |
22 | — | Check → |
| 69.72.44.127 | v5127.v5e5d4d68.usw1.send.mailgun.net |
6 | 1 | Check → |
| 69.72.43.182 | v5182.v5c0b6788.use4.send.mailgun.net |
5 | — | Check → |
| 204.220.171.164 | g164.gc579f28.use4.send.mailgun.net |
2 | 2 | Check → |
| 161.38.202.71 | v571.v53d22425.usw1.send.mailgun.net |
2 | 2 | Check → |
| 192.161.151.43 | mta-out13.pod20.usw2.zdsys.com |
1 | — | Check → |