Squarespace uses SendGrid as their primary email service provider. They rank #348,279 in the Tranco list of most-popular domains. We've also observed sends via SocketLabs. Their email authentication setup is solid (score 85/100). Missing: one-click unsubscribe.
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 3 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 4 observed emails use a return-path aligned with squarespace.info (em5969.squarespace.info, commsplat-prod-bounce.squarespace.info). SPF authenticates the visible From — supports DMARC directly.
DKIM alignment: all 3 observed emails sign with a domain aligned with squarespace.info (squarespace.info). DKIM authenticates the visible From — supports DMARC directly.
Delivery: fast — 100% of emails in the last 7 days arrive in under 10 seconds (across 3 sends).
Brands often use multiple ESPs (e.g. one for marketing, another for transactional/notifications).
SocketLabs 2ESPs 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: squarespace.info, em5969.squarespace.info, commsplat-prod-bounce.squarespace.info
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 % |
|---|---|---|---|---|---|
| SendGrid | 2 | 100.0% | 0.0% | 0.0% | |
| SocketLabs | 2 | 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 squarespace.info has been observed sending from, and where their mail landed in Gmail.
| Domain | ESPs detected | Delivery (7d) |
|---|---|---|
squarespace.info | SendGrid 2 SocketLabs 2 |