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Pre-Flight Outbound Infrastructure Audit

Mailbox identity, gateway traps, and routing recommendations

Prepared for: Acme Capital

Audited by: Apex Outbound

Date:

Metric summary

Total Leads Analyzed

5,000

Google Workspace Targets

2,850 (57%)

Route to Google senders

Microsoft 365 Targets

1,650 (33%)

Route to Outlook senders

Security Gateway Traps

420 (8.4%)

Proofpoint / Mimecast — plain text only

Dead / Broken DMARC

80 (1.6%)

Quarantined — do not send

Deliverability risk & impact assessment

EOP quarantine avoidance. 1,650 enterprise leads resolve to Microsoft 365. Blind Google Workspace senders into Exchange Online Protection are the classic 3–5 week burn. Routing those rows exclusively through Outlook / M365 sending seats keeps the conversation inside a trusted tenant path.

Link-detonation prevention. 420 leads sit behind Proofpoint or Mimecast. Tracked links and open pixels are detonated in the sandbox before a human sees the thread. Those rows must go plain text, tracking off — or the sending domain is scored as a phish kit.

Projected inbox placement lift: 55% → 82%+ on the matched Google and Microsoft cohorts after gateway rows are isolated and dead domains are quarantined.