Capitalone uses Salesforce MC for marketing email and SparkPost for transactional/notifications. They rank #2,836 in the Tranco list of most-popular domains. Email goes out from 3 different subdomains. Their email authentication setup is solid (score 100/100).
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 10 emails we've observed. DMARC policy is read live from DNS.
DMARC reports sent to Agari (Proofpoint). Policy
p=reject means receivers actively block or quarantine spoofed mail.
SPF alignment: all 2 observed emails use a return-path aligned with capitalone.com (bounce-cardcommunication.capitalone.com). SPF authenticates the visible From — supports DMARC directly.
DKIM alignment: all 55 observed emails sign with a domain aligned with capitalone.com (notification.capitalone.com, email.capitalone.com, message.capitalone.com). DKIM authenticates the visible From — supports DMARC directly.
TLS: 7% TLS 1.3, 93% TLS 1.2 (across 30 sends).
Delivery: fast — 92% of emails in the last 7 days arrive in under 10 seconds (across 13 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: capitalone.com, bounce-cardcommunication.capitalone.com, notification.capitalone.com, message.capitalone.com, email.capitalone.com, mta6-cardcommunication.capitalone.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 | 55 | 98.2% |
| promotions | 1 | 1.8% |
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 % |
|---|---|---|---|---|---|
| Salesforce MC | 2 | 100.0% | 0.0% | 0.0% | |
| SparkPost | 54 | 98.1% | 1.9% | 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 capitalone.com has been observed sending from, and where their mail landed in Gmail.
| IP | Hostname | Obs | Placement | Reputation |
|---|---|---|---|---|
| 192.174.83.182 | mta-83-182.sparkpostmail.com |
11 | — | Check → |
| 192.174.83.181 | mta-83-181.sparkpostmail.com |
11 | 4 | Check → |
| 168.203.38.81 | mta-203-38-81.sparkpostmail.com |
9 | 4 | Check → |
| 168.203.38.79 | mta-203-38-79.sparkpostmail.com |
9 | 6 | Check → |
| 168.203.38.80 | mta-203-38-80.sparkpostmail.com |
6 | 1 | Check → |
| 192.174.83.184 | mta-83-184.sparkpostmail.com |
6 | — | Check → |
| 192.174.83.183 | mta-83-183.sparkpostmail.com |
2 | — | Check → |
| 128.17.194.2 | mta6-cardcommunication.capitalone.com |
2 | 2 | Check → |
| 168.203.38.78 | mta-203-38-78.sparkpostmail.com |
1 | — | Check → |
| 192.174.83.178 | mta-83-178.sparkpostmail.com |
1 | — | Check → |
| Domain | ESPs detected | Delivery (7d) |
|---|---|---|
notification.capitalone.com | SparkPost 55 | |
email.capitalone.com | Salesforce MC 2 | |
message.capitalone.com | SparkPost 1 |
