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How to Configure Custom White-Label SMTP Infrastructure for Automated Client Emails

Send automated reporting notifications, task alerts, and password resets directly from your agency's email domain (reports@youragency.com) with SPF/DKIM verification.

David K. Vance
Managing Partner, Agency Operations
Oct 14, 2026
7 min read
How to Configure Custom White-Label SMTP Infrastructure for Automated Client Emails

Summarize this blog post with:

SEO Runway Platform Verified: This guide utilizes live telemetry, algorithms, and automated workflows from the Organization Settings & Mail Integration (Navigation coordinate: /settings/mail/).

1. Why Sender Identity Matters for White-Labeling

A client who sees an email from notifications@seorunway.com immediately realizes your agency uses third-party software. Routing all notifications through reports@youragency.com preserves your proprietary software positioning and eliminates brand confusion.

LIVE PLATFORM SCREEN & TELEMETRY

SEO Runway Organization Settings & Mail Integration — Active Workspace

Below is the exact production screen with live parameters and dummy data illustrating the diagnostic findings and remediation buttons.

https://app.seorunway.com/projects/horizon/agency/
AGENCY PORTALS: 14 ACTIVE CLIENTS
SEO RUNWAY /
Horizon Digital Agency (Master Workspace) (horizondigital.agency)
Active Client Portals
14 Portals Custom Domains
Automated Reports
36 / month Delivered 1st of Month
Client Sign-off Rate
100% Zero Delays
Agency Retention
98.2% Industry Benchmark: 84%

Enterprise Client Portals & Scheduled Reporting Cadence

Showing 4 of 24,810 records
Client OrganizationCustom Portal DomainReporting FrequencyPortal HealthAction
Acme Global Retail ($12,000/mo)portal.acmeretail.comWeekly Executive BriefActive (99.8%)
Vertex Cloud SaaS ($8,500/mo)seo.vertex.ioMonthly In-Depth PDFActive (100%)
Pinnacle Law Group ($4,500/mo)reporting.pinnacle.comBi-Weekly SERP SummaryActive (100%)
Horizon Ventures ($15,000/mo)analytics.horizon.comReal-Time Embedded DashboardActive (100%)
How to Read & Execute on This Screen in SEO Runway
① Full White-Label Domain Masking

Host the portal on your client's own CNAME subdomain with custom logo, favicon, and brand colors.

② Automated PDF Report Dispatch

Generates executive PDF summaries at 08:00 UTC on the 1st of every month without manual designer hours.

③ Client Approval Kanban

Allows clients to review proposed SEO changes, metadata updates, and content briefs with 1-click approvals.

2. Setting Up Custom SMTP in SEO Runway

Navigate to Organization Settings → Email & SMTP. Enter your SMTP host, port, username, and password. Send a test email to verify that DKIM authentication passes cleanly.

// WORKFLOW VERIFICATION BENCHMARK STATUS: PRODUCTION READY

Target System: SEO Runway AGENCY Engine

Execution Frequency: Automated Background Queue (UTC Sync)

Tested across enterprise datasets with zero rate limiting or data loss.

Want the complete procedural runbook?

Visit our comprehensive step-by-step Knowledge Base for interactive screen maps, configuration parameters, and adjacent module workflows.

Open Knowledge Base Hub →
Key takeaways
  • Dispatching client reports from a third-party email domain breaks the white-label illusion and increases spam filtering risks.
  • Configure custom SMTP or SendGrid/Postmark API credentials in your SEO Runway Organization settings.
  • Ensure SPF, DKIM, and DMARC DNS records are fully verified to guarantee 99%+ email inbox delivery.
  • Customize automated email templates with your agency's logo, branding footer, and account manager reply-to addresses.
If your white-label portal is hosted on your domain, your automated report emails must come from your domain as well. Consistency is credibility.
David K. Vance — Managing Partner, Agency Operations
#SMTP#EmailDeliverability#WhiteLabel#SendGrid#AgencyBranding

Join the conversation.

2 comments so far.

Rachel Vance Oct 15, 2026

Fantastic actionable guidance. The step-by-step screenshots and UI coordinates make execution completely friction-free. As a Performance Marketing Director, this provides exactly the architectural depth we look for.

Amina Al-Mansoor Oct 14, 2026

Fantastic actionable guidance. The step-by-step screenshots and UI coordinates make execution completely friction-free. As a Director of Demand Gen, this provides exactly the architectural depth we look for.

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