Firstinvestmentupdates uses Iterable for marketing email and Amazon SES for transactional/notifications. Their email authentication setup is solid (score 85/100). We've recorded 3 ESP changes since first observing this brand.
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 9 emails we've observed. DMARC policy is read live from DNS.
DMARC enforced with p=reject — receivers actively reject or quarantine spoofed mail. No aggregate reporting destination configured.
SPF alignment: observed emails use a third-party return-path (amazonses.com) — SPF passes there but doesn't align with firstinvestmentupdates.com, so DMARC has to rely on DKIM alignment.
DKIM alignment: all 38 observed emails sign with a domain aligned with firstinvestmentupdates.com (research.firstinvestmentupdates.com). DKIM authenticates the visible From — supports DMARC directly.
TLS: modern — 100% TLS 1.3 (across 17 sends).
Delivery: fast — 100% of emails in the last 7 days arrive in under 10 seconds (across 6 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.
No additional ESPs authorized in the brand's SPF beyond the confirmed senders above.
Probed: firstinvestmentupdates.com, amazonses.com, research.firstinvestmentupdates.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 | 36 | 80.0% |
| promotions | 9 | 20.0% |
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 | 16 | 100.0% | 0.0% | 0.0% | |
| Iterable | 27 | 66.7% | 33.3% | 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 firstinvestmentupdates.com has been observed sending from, and where their mail landed in Gmail.
| IP | Hostname | Obs | Reputation |
|---|---|---|---|
| 54.240.79.227 | a79-227.smtp-out.amazonses.com |
3 | Check → |
| 23.251.255.191 | e255-191.smtp-out.amazonses.com |
2 | Check → |
| 54.240.78.232 | a78-232.smtp-out.amazonses.com |
2 | Check → |
| 54.240.78.145 | a78-145.smtp-out.amazonses.com |
2 | Check → |
| 76.223.141.224 | c141-224.smtp-out.amazonses.com |
2 | Check → |
| 76.223.141.180 | c141-180.smtp-out.amazonses.com |
2 | Check → |
| 54.240.79.76 | a79-76.smtp-out.amazonses.com |
2 | Check → |
| 54.240.79.187 | a79-187.smtp-out.amazonses.com |
1 | Check → |
| 76.223.142.7 | c142-7.smtp-out.amazonses.com |
1 | Check → |
| 76.223.141.213 | c141-213.smtp-out.amazonses.com |
1 | Check → |
| 76.223.141.167 | c141-167.smtp-out.amazonses.com |
1 | Check → |
| 54.240.78.235 | a78-235.smtp-out.amazonses.com |
1 | Check → |
| 54.240.78.125 | a78-125.smtp-out.amazonses.com |
1 | Check → |
| 54.240.78.182 | a78-182.smtp-out.amazonses.com |
1 | Check → |
| 54.240.73.46 | a73-46.smtp-out.amazonses.com |
1 | Check → |
| 54.240.78.155 | a78-155.smtp-out.amazonses.com |
1 | Check → |
| 76.223.141.241 | c141-241.smtp-out.amazonses.com |
1 | Check → |
| 76.223.141.237 | c141-237.smtp-out.amazonses.com |
1 | Check → |
| 54.240.79.131 | a79-131.smtp-out.amazonses.com |
1 | Check → |
| 54.240.78.121 | a78-121.smtp-out.amazonses.com |
1 | Check → |
| 54.240.79.122 | a79-122.smtp-out.amazonses.com |
1 | Check → |
| 54.240.79.236 | a79-236.smtp-out.amazonses.com |
1 | Check → |
| 23.251.255.185 | e255-185.smtp-out.amazonses.com |
1 | Check → |
| 76.223.141.202 | c141-202.smtp-out.amazonses.com |
1 | Check → |
| 54.240.79.32 | a79-32.smtp-out.amazonses.com |
1 | Check → |
Per-IP inbox / promotions / spam is being collected and will appear here as new emails are observed.
| Domain | ESPs detected | Delivery (7d) |
|---|---|---|
research.firstinvestmentupdates.com | Iterable 30 Amazon SES 18 |