1password uses Marketo for marketing email and Amazon SES for transactional/notifications. They rank #2,689 in the Tranco list of most-popular domains. Email goes out from 2 different subdomains. Their email authentication setup is solid (score 95/100).
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.
SPF / DKIM / DMARC above reflect the last 3 emails we've observed. DMARC policy is read live from DNS.
DMARC reports sent to 1password.com. Policy
p=quarantine means receivers actively block or quarantine spoofed mail.
SPF alignment: 97% of observed emails use an aligned return-path (bounce.1password.com, bounce.email.1password.com); the rest use third-party paths (red-robot.net) where DMARC has to rely on DKIM alignment.
DKIM alignment: all 25 observed emails sign with a domain aligned with 1password.com (1password.com, email.1password.com). DKIM authenticates the visible From — supports DMARC directly.
VMC issued by: digicert.
TLS: modern — 80% TLS 1.3 (across 5 sends).
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).
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: 1password.com, bounce.1password.com, bounce.email.1password.com, red-robot.net, email.1password.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 | 35 | 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 | 27 | 100.0% | 0.0% | 0.0% | |
| Marketo | 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 1password.com has been observed sending from, and where their mail landed in Gmail.
| IP | Hostname | Obs | Placement | Reputation |
|---|---|---|---|---|
| 54.240.57.50 | a57-50.smtp-out.us-west-2.amazonses.com |
11 | 1 | Check → |
| 54.240.57.49 | a57-49.smtp-out.us-west-2.amazonses.com |
6 | — | Check → |
| 23.251.237.150 | e237-150.smtp-out.us-west-2.amazonses.com |
5 | — | Check → |
| 54.240.57.48 | a57-48.smtp-out.us-west-2.amazonses.com |
3 | — | Check → |
| 192.28.145.91 | bounce.email.1password.com |
3 | 1 | Check → |
| 23.251.237.151 | e237-151.smtp-out.us-west-2.amazonses.com |
2 | — | Check → |
| 54.240.11.42 | a11-42.smtp-out.amazonses.com |
2 | — | Check → |
| 54.240.48.80 | a48-80.smtp-out.amazonses.com |
1 | — | Check → |
| 54.240.11.23 | a11-23.smtp-out.amazonses.com |
1 | — | Check → |
| 54.240.48.85 | a48-85.smtp-out.amazonses.com |
1 | — | Check → |
| Domain | ESPs detected | Delivery (7d) |
|---|---|---|
1password.com | Amazon SES 33 | |
email.1password.com | Marketo 3 |