Deliverability Health & Inbox Placement Intelligence

Meridian Financial Services — Real-time deliverability monitoring across 1.4M subscribers

Gmail Inbox Placement
82.1%
-6.8% vs 30d avg
Domain Reputation Score
7.4
+0.3 from low
Spam Complaint Rate
0.18%
+0.04% 7d
Spam Trap Hit Rate
0.012%
Critical threshold
DMARC Pass Rate
99.7%
Stable
ISP Throttling Events
3
Last 7 days
2 Gmail, 1 Yahoo

Inbox Placement Rate — 90-Day Calendar Heatmap

W1
W2
W3
W4
W5
W6
W7
W8
W9
W10
W11
W12
W13
Gmail
94%
93%
95%
92%
94%
93%
88%
85%
79%
81%
80%
83%
82%
Outlook
91%
90%
92%
91%
89%
90%
88%
89%
87%
88%
86%
87%
88%
Yahoo
88%
89%
87%
90%
88%
87%
84%
81%
78%
80%
79%
82%
81%
Apple Mail
96%
95%
97%
96%
95%
96%
94%
95%
93%
94%
93%
94%
95%
AOL
86%
85%
87%
86%
85%
84%
81%
79%
76%
78%
77%
79%
80%
Week 7-9 decline corresponds to Day 45-63 Gmail reputation event from high-volume promo send to unsegmented list.

Domain Reputation Score Trajectory (Google Postmaster)

Spam Complaint Rate by Campaign (Last 30 Days)

Bounce Rate by Acquisition Cohort — 12-Month Degradation Tracking

Cohort Month 0 Month 1 Month 2 Month 3 Month 6 Month 9 Month 12 Status
Jan 2024 0.8% 1.2% 1.4% 1.6% 2.1% 2.4% 2.8% Healthy
Feb 2024 0.9% 1.3% 1.5% 1.7% 2.2% 2.6% — Healthy
Mar 2024 3.2% 4.1% 5.3% 6.8% 8.2% — — Critical
Apr 2024 1.0% 1.4% 1.6% 1.9% 2.5% — — Healthy
May 2024 0.7% 1.1% 1.3% 1.5% — — — Healthy
Jun 2024 0.9% 1.2% 1.4% — — — — Healthy
Jul 2024 0.8% 1.1% — — — — — Healthy
Aug 2024 0.7% — — — — — — New
March 2024 cohort flagged: third-party co-reg import introduced 12K invalid emails, causing sustained high bounce rate.

DMARC Authentication Pass Rate

Spam Trap Hits (Weekly)

Feedback Loop Complaint-to-Unsub Ratio

ISP Throttling Event Frequency (Last 60 Days)

Seed List Open Rate Variance by ISP

Deliverability Incident & Hygiene Event Log

Date Event Type ISP/Domain Impact Root Cause Status
2024-08-21 Placement Drop Gmail Inbox rate 82% (−11%) Unsegmented promo send to 6-month inactives (Day 45 incident) Recovering
2024-08-18 Throttling Yahoo 450 deferrals, 12hr delay Elevated complaint rate from flash sale campaign Resolved
2024-08-12 Spam Trap Spike All ISPs 0.018% trap hit rate March co-reg import contained recycled traps Suppressing
2024-07-30 List Hygiene All Domains Suppressed 18.2K emails BriteVerify validation run, removed invalids/traps Complete
2024-07-15 Throttling Gmail 421 rate-limit, 2hr delay Peak send volume 2.1M in 1hr window Resolved
2024-06-28 Blacklist Spamhaus ZEN IP 192.0.2.14 listed 6hrs Co-reg import Mar batch — now fully suppressed Delisted

List Hygiene ROI Timeline — 52-Week Investment vs. Placement Rate Recovery

Weekly hygiene spend and cumulative inbox placement rate improvement. July validation run cost $2,840 (18.2K @ $0.156/email), recovered +4.2% placement (+$31K monthly revenue).