Seguno uses Seguno for marketing email and SparkPost for transactional/notifications. They rank #74,680 in the Tranco list of most-popular domains. We've also observed sends via 3 other providers: Shopify Messaging, Amazon SES, Mailgun. Email goes out from 8 different subdomains. Their email authentication setup is solid (score 100/100). We've recorded 8 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 seguno.com. Policy
p=reject means receivers actively block or quarantine spoofed mail.
SPF alignment: all 27 observed emails use a return-path aligned with seguno.com (outbound.intercom.seguno.com, mta.seguno-mail.com). SPF authenticates the visible From — supports DMARC directly.
DKIM alignment: all 897 observed emails sign with a domain aligned with seguno.com (mta3.seguno-mail.com, mta.seguno-mail.com, mta2.seguno-mail.com). DKIM authenticates the visible From — supports DMARC directly.
VMC issued by: digicert.
TLS: 3% TLS 1.3, 97% TLS 1.2 (across 623 sends).
Delivery: fast — 97% of emails in the last 7 days arrive in under 10 seconds (across 112 sends).
Brands often use multiple ESPs (e.g. one for marketing, another for transactional/notifications).
Shopify Messaging 16 Intercom 13 Amazon SES 11 Mailgun 1ESPs 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.
Shopify Messaging
✓ via Mailgun
Amazon SES
observed
"Observed" pills mean we detected emails from these ESPs, but they don't appear in any SPF record we probed. They may still be properly authorized — sending infrastructure can live on subdomains we haven't seen yet, or use IP-listing instead of include: directives.
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: seguno.com, mta.seguno-mail.com, outbound.intercom.seguno.com, mail-app.seguno.com, mta4.seguno-mail.com, mta0.seguno-mail.com, mta2.seguno-mail.com, mta3.seguno-mail.com, mta1.seguno-mail.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 | 443 | 82.2% |
| promotions | 12 | 2.2% |
| spam | 84 | 15.6% |
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 % |
|---|---|---|---|---|---|
| Seguno | 381 | 76.9% | 1.3% | 21.8% | |
| Shopify Messaging | 15 | 93.3% | 0.0% | 6.7% | |
| SparkPost | 80 | 100.0% | 0.0% | 0.0% | |
| Amazon SES | 10 | 100.0% | 0.0% | 0.0% | |
| Intercom | 12 | 83.3% | 16.7% | 0.0% | |
| Mailgun | 1 | 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 seguno.com has been observed sending from, and where their mail landed in Gmail.
| IP | Hostname | Obs | Placement | Reputation |
|---|---|---|---|---|
| 192.174.93.77 | mta-174-93-77.seguno.com.sparkpostmail.com |
42 | 1 | Check → |
| 156.70.22.67 | mta-70-22-67.sparkpostmail.com |
41 | 4 | Check → |
| 192.174.93.78 | mta-174-93-78.seguno.sparkpostmail.com |
34 | 3 | Check → |
| 192.174.93.79 | mta-174-93-79.seguno.com.sparkpostmail.com |
31 | 3 | Check → |
| 156.70.53.44 | mta-70-53-44.sparkpostmail.com |
26 | 2 | Check → |
| 143.55.229.144 | v5144.v56063cb6.use4.send.mailgun.net |
8 | 1 | Check → |
| 143.55.229.141 | v5141.v56063cb6.use4.send.mailgun.net |
5 | — | Check → |
| 143.55.229.143 | v5143.v56063cb6.use4.send.mailgun.net |
3 | — | Check → |
| 143.55.229.129 | v5129.v56063cb6.use4.send.mailgun.net |
3 | 1 | Check → |
| Domain | ESPs detected | Delivery (7d) |
|---|---|---|
mta3.seguno-mail.com | Seguno 212 | |
mail-app.seguno.com | SparkPost 92 Seguno 82 | |
mta.seguno-mail.com | Seguno 167 | |
mta2.seguno-mail.com | Seguno 155 | |
mta1.seguno-mail.com | Seguno 131 | |
seguno.com | Seguno 62 Shopify Messaging 16 Intercom 13 Amazon SES 11 Mailgun 1 | |
mta0.seguno-mail.com | Seguno 10 | |
mta4.seguno-mail.com | Seguno 9 |