Imarketing uses Klaviyo for marketing email and Amazon SES for transactional/notifications. They rank #704,408 in the Tranco list of most-popular domains. Their email authentication setup is solid (score 85/100).
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.
DMARC reports sent to imarketing.courses. Policy
p=reject means receivers actively block or quarantine spoofed mail.
SPF alignment: 75% of observed emails use an aligned return-path (k3.send.imarketing.courses); the rest use third-party paths (amazonses.com) where DMARC has to rely on DKIM alignment.
DKIM alignment: all 4 observed emails sign with a domain aligned with imarketing.courses (send.imarketing.courses, imarketing.courses). 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.
No additional ESPs authorized in the brand's SPF beyond the confirmed senders above.
Probed: imarketing.courses, amazonses.com, k3.send.imarketing.courses
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 | 4 | 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 % |
|---|---|---|---|---|---|
| Amazon SES | 1 | 100.0% | 0.0% | 0.0% | |
| Klaviyo | 3 | 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 imarketing.courses has been observed sending from, and where their mail landed in Gmail.
| IP | Hostname | Obs | Reputation |
|---|---|---|---|
| 54.240.48.116 | a48-116.smtp-out.amazonses.com |
1 | Check → |
| 170.203.20.10 | kl-203-20-10.kmta.shared.klaviyomail.com |
1 | Check → |
| 170.203.24.17 | kl-203-24-17.kmta.shared.klaviyomail.com |
1 | Check → |
| 170.203.28.17 | kl-203-28-17.kmta.shared.klaviyomail.com |
1 | Check → |
Per-IP inbox / promotions / spam is being collected and will appear here as new emails are observed.
| Domain | ESPs detected | Delivery (7d) |
|---|---|---|
imarketing.courses | Klaviyo 3 Amazon SES 1 |