Asos uses SparkPost as their primary email service provider. They rank #3,298 in the Tranco list of most-popular domains. We've also observed sends via SendGrid. Email goes out from 2 different subdomains. Their email authentication setup is solid (score 100/100). We've recorded 2 ESP changes since first observing this brand.
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 Red Sift OnDMARC. Policy
p=reject means receivers actively block or quarantine spoofed mail.
SPF alignment: all 6 observed emails use a return-path aligned with asos.com (em8692.asos.com). SPF authenticates the visible From — supports DMARC directly.
DKIM alignment: all 92 observed emails sign with a domain aligned with asos.com (official.asos.com, asos.com). DKIM authenticates the visible From — supports DMARC directly.
TLS: 3% TLS 1.3, 97% TLS 1.2 (across 38 sends).
Delivery: fast — 100% of emails in the last 7 days arrive in under 10 seconds (across 18 sends).
Brands often use multiple ESPs (e.g. one for marketing, another for transactional/notifications).
SendGrid 8ESPs 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: asos.com, em8692.asos.com, official.asos.com, notifications.asos.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 | 85 | 97.7% |
| promotions | 2 | 2.3% |
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 | 6 | 100.0% | 0.0% | 0.0% | |
| SparkPost | 76 | 97.4% | 2.6% | 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 asos.com has been observed sending from, and where their mail landed in Gmail.
| IP | Hostname | Obs | Placement | Reputation |
|---|---|---|---|---|
| 223.165.127.100 | o5.official.asos.com |
14 | — | Check → |
| 223.165.127.124 | o58.official.asos.com |
13 | 5 | Check → |
| 223.165.127.78 | o15.official.asos.com |
12 | 2 | Check → |
| 223.165.127.72 | o70.official.asos.com |
12 | — | Check → |
| 223.165.127.115 | o57.official.asos.com |
11 | 2 | Check → |
| 223.165.127.168 | o64.official.asos.com |
10 | 5 | Check → |
| 223.165.127.88 | o55.official.asos.com |
8 | 2 | Check → |
| 223.165.127.144 | o6.official.asos.com |
6 | 3 | Check → |
| 223.165.127.118 | o73.official.asos.com |
6 | — | Check → |
| 168.245.123.18 | o1.notifications.asos.com |
4 | — | Check → |
| 168.245.103.163 | o2.notifications.asos.com |
3 | — | Check → |
| 223.165.127.224 | o54.official.asos.com |
2 | 2 | Check → |