Harvard uses Salesforce MC as their primary email service provider. They rank #297 in the Tranco list of most-popular domains. We've also observed sends via Campaign Monitor. Email goes out from 3 different subdomains. Their email authentication setup is good (score 80/100).
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 2 emails 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.
SPF alignment: observed emails use a third-party return-path (bounce.s7.exacttarget.com, cmail20.com) — SPF passes there but doesn't align with harvard.edu, so DMARC has to rely on DKIM alignment.
DKIM alignment: all 3 observed emails sign with a domain aligned with harvard.edu (gse.harvard.edu, hks.harvard.edu). DKIM authenticates the visible From — supports DMARC directly.
Delivery: fast — 100% of emails in the last 7 days arrive in under 10 seconds (across 2 sends).
Brands often use multiple ESPs (e.g. one for marketing, another for transactional/notifications).
Campaign Monitor 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.
No additional ESPs authorized in the brand's SPF beyond the confirmed senders above.
Probed: harvard.edu, cmail20.com, bounce.s7.exacttarget.com, mail.harvardonline.harvard.edu, hks.harvard.edu, gse.harvard.edu, harvardonline.harvard.edu
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 % |
|---|---|---|---|---|---|
| Salesforce MC | 3 | 100.0% | 0.0% | 0.0% | |
| Campaign Monitor | 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 harvard.edu has been observed sending from, and where their mail landed in Gmail.
| Domain | ESPs detected | Delivery (7d) |
|---|---|---|
gse.harvard.edu | Salesforce MC 2 | |
mail.harvardonline.harvard.edu | Salesforce MC 1 | |
hks.harvard.edu | Campaign Monitor 1 |