SparkPost uses SparkPost as their primary email service provider. They rank #22,215 in the Tranco list of most-popular domains. Email goes out from 2 different subdomains. Their email authentication setup is solid (score 95/100).
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 8 emails we've observed. DMARC policy is read live from DNS.
DMARC reports sent to Validity (EmailAnalyst). Policy
p=reject means receivers actively block or quarantine spoofed mail.
SPF alignment: 97% of observed emails use an aligned return-path (bounces.sparkpost.com); the rest use third-party paths (prestigepublishing.io) where DMARC has to rely on DKIM alignment.
DKIM alignment: all 26 observed emails sign with a domain aligned with sparkpost.com (sparkpost.com, alerts.sparkpost.com). DKIM authenticates the visible From — supports DMARC directly.
TLS: 8% TLS 1.3, 92% TLS 1.2 (across 12 sends).
Delivery: fast — 100% of emails in the last 7 days arrive in under 10 seconds (across 5 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: sparkpost.com, bounces.sparkpost.com, prestigepublishing.io, alerts.sparkpost.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 | 37 | 97.4% |
| promotions | 1 | 2.6% |
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 | 35 | 97.1% | 2.9% | 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 sparkpost.com has been observed sending from, and where their mail landed in Gmail.
| IP | Hostname | Obs | Placement | Reputation |
|---|---|---|---|---|
| 147.253.211.5 | mta-253-211-5.smtp-out.sparkpostmail.com |
7 | — | Check → |
| 192.174.87.105 | mta-174-87-105.smtp-out.sparkpostmail.com |
5 | 1 | Check → |
| 192.174.87.136 | mta-174-87-136.smtp-out.sparkpostmail.com |
4 | — | Check → |
| 147.253.214.77 | mta-253-214-77.smtp-out.sparkpostmail.com |
3 | — | Check → |
| 192.174.87.139 | mta-174-87-139.smtp-out.sparkpostmail.com |
3 | — | Check → |
| 192.174.87.148 | mta-174-87-148.smtp-out.sparkpostmail.com |
2 | — | Check → |
| 192.174.87.141 | mta-174-87-141.smtp-out.sparkpostmail.com |
2 | 1 | Check → |
| 147.253.215.179 | mta-253-215-179.smtp-out.sparkpostmail.com |
2 | 1 | Check → |
| 192.174.87.138 | mta-174-87-138.smtp-out.sparkpostmail.com |
2 | 2 | Check → |
| 167.89.75.33 | o10.notifications-sendgrid.statuspage.io |
1 | — | Check → |
| 167.89.74.233 | o6.notifications-sendgrid.statuspage.io |
1 | — | Check → |
| 147.253.212.0 | mta-253-212-0.smtp-out.sparkpostmail.com |
1 | — | Check → |
| 147.253.223.88 | mta-223-88.sparkpostmail.com |
1 | — | Check → |
| 147.253.215.159 | mta-253-215-159.smtp-out.sparkpostmail.com |
1 | — | Check → |
| 167.89.65.100 | o5.notifications-sendgrid.statuspage.io |
1 | 1 | Check → |
| 147.253.211.76 | mta-253-211-76.smtp-out.sparkpostmail.com |
1 | 1 | Check → |