SendGrid uses SendGrid as their primary email service provider. They rank #5,828 in the Tranco list of most-popular domains. Their email authentication setup is solid (score 100/100).
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 1 email we've observed. DMARC policy is read live from DNS.
DMARC reports sent to vali.email. Policy
p=reject means receivers actively block or quarantine spoofed mail.
SPF alignment: all 2 observed emails use a return-path aligned with sendgrid.com (alerts.sendgrid.com, howdy.sendgrid.com). SPF authenticates the visible From — supports DMARC directly.
DKIM alignment: all 8 observed emails sign with a domain aligned with sendgrid.com (sendgrid.com). DKIM authenticates the visible From — supports DMARC directly.
VMC issued by: valimail.
Gmail's own filter showed these warnings to real subscribers in their inbox — independent of SPF/DKIM/DMARC pass/fail status. A consistent pattern often signals reputation issues or brand-impersonation concerns.
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: sendgrid.com, alerts.sendgrid.com, howdy.sendgrid.com, email.sendgrid.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 | 13 | 92.9% |
| spam | 1 | 7.1% |
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 | 11 | 90.9% | 0.0% | 9.1% |
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 sendgrid.com has been observed sending from, and where their mail landed in Gmail.
| IP | Hostname | Obs | Placement | Reputation |
|---|---|---|---|---|
| 198.244.56.115 | 56-115.static.mg.stspg-customer.com |
2 | — | Check → |
| 198.244.56.113 | 56-113.static.mg.stspg-customer.com |
2 | — | Check → |
| 198.244.56.114 | 56-114.static.mg.stspg-customer.com |
2 | — | Check → |
| 159.112.242.162 | v5162.v5463bdc0.use4.send.mailgun.net |
1 | — | Check → |
| 167.89.32.5 | o2.email.sendgrid.com |
1 | — | Check → |
| 50.31.36.205 | o6.email.sendgrid.com |
1 | — | Check → |
| 50.31.36.208 | o7.email.sendgrid.com |
1 | — | Check → |
| 149.72.225.118 | wrqvzkts.outbound-mail.sendgrid.net |
1 | — | Check → |
| 204.220.181.105 | 181-105.static.mg.stspg-customer.com |
1 | — | Check → |
| 198.244.56.112 | 56-112.static.mg.stspg-customer.com |
1 | 1 | Check → |
| Domain | ESPs detected | Delivery (7d) |
|---|---|---|
sendgrid.com | SendGrid 11 |