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Bigmarker

bigmarker.com
🏆Rank #30,066 🏷 SaaS 🇺🇸United States

Bigmarker uses Postmark as their primary email service provider. They rank #30,066 in the Tranco list of most-popular domains. Their email authentication setup is good (score 72/100).

Transactional ESPPostmark
Total observations5
Active days2
Avg per active day2.5
Last activity⏸ Slowing · 2 weeks ago
Cadence~every 2 weeks
Compare Bigmarker with another brand:

Email setup 72/100

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.

Solid setup, room to improve
Most authentication signals are present. A couple of pieces would tighten things up.
72/100
SPF
pass
DKIM
pass
DMARC
pass (quarantine)
BIMI
none
Unsubscribe
standard
SPF lookups 7/10
Authentication

DMARC reports sent to dmarc-report.com. Policy p=quarantine means receivers actively block or quarantine spoofed mail.

SPF alignment: all 5 observed emails use a return-path aligned with bigmarker.com (pm-bounces.bigmarker.com). SPF authenticates the visible From — supports DMARC directly.

DKIM alignment: all 5 observed emails sign with a domain aligned with bigmarker.com (bigmarker.com). DKIM authenticates the visible From — supports DMARC directly.

Other ESPs detected

Brands often use multiple ESPs (e.g. one for marketing, another for transactional/notifications).

None — only the primary ESP(s) shown above

Confirmed senders

ESPs 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.

Postmark ✓ confirmed

Other SPF authorizations

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.

Amazon SES Brevo Google Workspace Microsoft 365

Probed: bigmarker.com, pm-bounces.bigmarker.com

Where emails landed (Gmail)

Folder distribution across all emails from this brand observed in Gmail inboxes. High inbox % = good deliverability; spam appearances are the headline signal.

FolderCountShare
inbox 5 100.0%

Placement by ESP

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 %
Postmark 5
100.0% 0.0% 0.0%

ESP activity over time

May 26 – Jun 16, 2026 · 2 days with sends

Daily observations per ESP. Brands often run multiple ESPs concurrently — marketing on one, transactional on another — so this chart shows usage rather than switches.

4 0 Postmark: 1 (2026-05-26)1Postmark: 4 (2026-06-16)405/2605/2906/0106/0406/0706/1006/1306/16
Postmark

Similar brands using Postmark

Sending IPs

IP addresses bigmarker.com has been observed sending from, and where their mail landed in Gmail.

IPHostnameObsReputation
50.31.205.24 mta24-ab1.mtasv.net 3 Check →
50.31.205.249 mta249-ab1.mtasv.net 1 Check →
104.245.209.212 mta212a-ord.mtasv.net 1 Check →

Per-IP inbox / promotions / spam is being collected and will appear here as new emails are observed.

Sending domains

DomainESPs detectedDelivery (7d)
bigmarker.comPostmark 5