Coursera uses Braze for marketing email and SparkPost for transactional/notifications. They rank #1,039 in the Tranco list of most-popular domains. Email goes out from 3 different subdomains. Their email authentication setup is solid (score 85/100).
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 coursera.org. Policy
p=reject means receivers actively block or quarantine spoofed mail.
DKIM alignment: all 42 observed emails sign with a domain aligned with coursera.org (m.learn.coursera.org, t.mail.coursera.org, m.mail.coursera.org). DKIM authenticates the visible From — supports DMARC directly.
TLS: 0% TLS 1.3, 100% TLS 1.2 (across 22 sends).
Delivery: fast — 100% of emails in the last 7 days arrive in under 10 seconds (across 11 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: coursera.org, m.mail.coursera.org, m.learn.coursera.org, t.mail.coursera.org, learn.coursera.org
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 | 30 | 66.7% |
| promotions | 15 | 33.3% |
Placement observed in Outlook / Microsoft 365 mailboxes. Focused Inbox splits mail into two tabs, "Focused" (inbox) and "Other", plus Junk. 0% reached the Focused inbox across 4 observed emails.
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 % |
|---|---|---|---|---|---|
| SparkPost | 44 | 65.9% | 34.1% | 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 coursera.org has been observed sending from, and where their mail landed in Gmail.
| IP | Hostname | Obs | Placement | Reputation |
|---|---|---|---|---|
| 192.174.83.12 | mta-83-12.sparkpostmail.com |
10 | — | Check → |
| 137.22.225.86 | ycnv0avc.m.learn.coursera.org |
8 | 2 | Check → |
| 137.22.228.156 | y7046dzs.m.learn.coursera.org |
5 | 2 | Check → |
| 137.22.228.253 | x69sbhgp.m.learn.coursera.org |
5 | — | Check → |
| 192.174.83.10 | mta-174-83-10.coursera.org.sparkpostmail.com |
5 | — | Check → |
| 137.22.228.120 | rw1u8efs.m.learn.coursera.org |
4 | — | Check → |
| 137.22.227.203 | r0nq2pcw.m.learn.coursera.org |
3 | 1 | Check → |
| 192.174.83.9 | mta-174-83-9.coursera.org.sparkpostmail.com |
3 | — | Check → |
| 137.22.226.178 | vy8stkzx.m.learn.coursera.org |
2 | 1 | Check → |
| 192.174.83.13 | mta-83-13.sparkpostmail.com |
2 | — | Check → |
| 137.22.226.122 | jytzxxwe.m.learn.coursera.org |
2 | — | Check → |
| 137.22.225.164 | jqzuffu5.m.learn.coursera.org |
2 | — | Check → |
| 137.22.224.128 | uirtfggv.m.learn.coursera.org |
2 | 2 | Check → |
| 192.174.83.11 | mta-174-83-11.coursera.org.sparkpostmail.com |
1 | — | Check → |
| 137.22.228.125 | z78nhkgr.m.learn.coursera.org |
1 | — | Check → |
