Bill uses SendGrid as their primary email service provider. They rank #7,525 in the Tranco list of most-popular domains. Email goes out from 3 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 10 emails we've observed. DMARC policy is read live from DNS.
DMARC reports sent to dmarc-report.com. Policy
p=reject means receivers actively block or quarantine spoofed mail.
SPF alignment: 66% of observed emails use an aligned return-path (em3398.inform.bill.com, em5377.hq.bill.com, em1993.hello.bill.com); the rest use third-party paths (emailmarketingnyc.com, flowium.com) where DMARC has to rely on DKIM alignment.
DKIM alignment: all 52 observed emails sign with a domain aligned with bill.com (inform.bill.com, hq.bill.com, hello.bill.com). DKIM authenticates the visible From — supports DMARC directly.
TLS: modern — 97% TLS 1.3 (across 31 sends).
Delivery: fast — 88% of emails in the last 7 days arrive in under 10 seconds (across 8 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: bill.com, em3398.inform.bill.com, emailmarketingnyc.com, em5377.hq.bill.com, em1993.hello.bill.com, flowium.com, inform.bill.com, hq.bill.com, hello.bill.com, brand.bill.com, sg.bill.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 | 58 | 96.7% |
| promotions | 2 | 3.3% |
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 | 56 | 96.4% | 3.6% | 0.0% |
Weekly 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 bill.com has been observed sending from, and where their mail landed in Gmail.
| IP | Hostname | Obs | Placement | Reputation |
|---|---|---|---|---|
| 198.37.157.179 | o1.sg.bill.com |
10 | 2 | Check → |
| 149.72.128.52 | wrqvvhpq.outbound-mail.sendgrid.net |
7 | — | Check → |
| 149.72.82.181 | o2.brand.bill.com |
5 | — | Check → |
| 159.183.166.196 | wfbtxscq.outbound-mail.sendgrid.net |
4 | — | Check → |
| 159.183.129.17 | wfbtvkkk.outbound-mail.sendgrid.net |
4 | — | Check → |
| 159.183.156.202 | wfbtwccx.outbound-mail.sendgrid.net |
4 | 1 | Check → |
