Discover uses Responsys for marketing email and Amazon SES for transactional/notifications. They rank #7,352 in the Tranco list of most-popular domains. Email goes out from 2 different subdomains. Their email authentication setup is solid (score 95/100).
Amazon SESAuthentication 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 vali.email. Policy
p=quarantine means receivers actively block or quarantine spoofed mail.
DKIM alignment: all 4 observed emails sign with a domain aligned with discover.com (card-e.em.discover.com, discover.com). DKIM authenticates the visible From — supports DMARC directly.
VMC issued by: digicert.
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.
No additional ESPs authorized in the brand's SPF beyond the confirmed senders above.
Probed: discover.com, card-e.em.discover.com, services.discover.com, em.discover.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 | 10 | 83.3% |
| promotions | 2 | 16.7% |
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 % |
|---|---|---|---|---|---|
| Responsys | 7 | 85.7% | 14.3% | 0.0% | |
| Amazon SES | 4 | 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 discover.com has been observed sending from, and where their mail landed in Gmail.
| IP | Hostname | Obs | Placement | Reputation |
|---|---|---|---|---|
| 199.7.207.160 | omp.card-e.em.discover.com |
3 | — | Check → |
| 199.7.205.3 | omptrans.card-e.em.discover.com |
2 | — | Check → |
| 199.7.207.146 | omp.card-e.em.discover.com |
2 | 1 | Check → |
| 199.7.207.162 | omp.card-e.em.discover.com |
1 | — | Check → |
| 54.240.123.130 | a123-130.smtp-out.amazonses.com |
1 | — | Check → |
| 54.240.123.131 | a123-131.smtp-out.amazonses.com |
1 | — | Check → |
| 54.240.66.217 | a66-217.smtp-out.amazonses.com |
1 | — | Check → |
| 54.240.41.201 | a41-201.smtp-out.amazonses.com |
1 | — | Check → |
| Domain | ESPs detected | Delivery (7d) |
|---|---|---|
card-e.em.discover.com | Responsys 8 | |
services.discover.com | Amazon SES 4 |