Thespotcowork uses Mailchimp for marketing email and Mailgun for transactional/notifications. We've also observed sends via Postmark. Their email authentication setup is good (score 80/100). We've recorded 3 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 enforced with p=quarantine — receivers actively reject or quarantine spoofed mail. No aggregate reporting destination configured.
SPF alignment: 73% of observed emails use an aligned return-path (pm-bounces.thespotcowork.com); the rest use third-party paths (mail180.sea51.mcsv.net) where DMARC has to rely on DKIM alignment.
DKIM alignment: all 68 observed emails sign with a domain aligned with thespotcowork.com (thespotcowork.com). DKIM authenticates the visible From — supports DMARC directly.
TLS: 6% TLS 1.3, 94% TLS 1.2 (across 34 sends).
Delivery: fast — 100% of emails in the last 7 days arrive in under 10 seconds (across 19 sends).
Brands often use multiple ESPs (e.g. one for marketing, another for transactional/notifications).
Postmark 12ESPs 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: thespotcowork.com, pm-bounces.thespotcowork.com, mail180.sea51.mcsv.net
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 | 79 | 100.0% |
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 % |
|---|---|---|---|---|---|
| Mailchimp | 3 | 100.0% | 0.0% | 0.0% | |
| Mailgun | 56 | 100.0% | 0.0% | 0.0% | |
| Postmark | 9 | 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 thespotcowork.com has been observed sending from, and where their mail landed in Gmail.
| IP | Hostname | Obs | Placement | Reputation |
|---|---|---|---|---|
| 159.135.230.15 | v515.v5b53cb91.use4.send.mailgun.net |
76 | 18 | Check → |
| 104.245.209.203 | mta203a-ord.mtasv.net |
6 | — | Check → |
| 148.105.13.180 | mail180.sea51.mcsv.net |
3 | — | Check → |
| 50.31.205.206 | mta206-ab1.mtasv.net |
2 | 2 | Check → |
| 198.2.129.53 | mail53.atl71.mcdlv.net |
1 | — | Check → |
| 50.31.205.203 | mta203-ab1.mtasv.net |
1 | — | Check → |
| 104.245.209.202 | mta202a-ord.mtasv.net |
1 | — | Check → |
| 50.31.205.204 | mta204-ab1.mtasv.net |
1 | — | Check → |
| 104.245.209.246 | mta246b-ord.mtasv.net |
1 | — | Check → |
