Postbox Services Cold Email Services

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We help businesses set up, manage, and scale cold email outreach that actually delivers. From domain warmup and mailbox setup to message optimization, technical audits, and weekly monitoring — our end-to-end service ensures every email is backed by strategy, compliance, and best-in-class infrastructure. Whether you’re just getting started or troubleshooting poor deliverability, we’ll help you build a cold email system that works.

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Domains / Mailbox Warmup Management (60-90 days)

Build strong domain reputation from day one with a structured warmup process ensuring inbox placement, security compliance, and ready-to-scale email infrastructure.
  • Proactively purchasing domains well in time (60-90 days in advance)
  • Setting up domains with all recommendations (MX, SPF, DKIM, DMARC) required for email security and deliverability, and implementing weekly free DMARC reports
  • Setting up the domain forwards
  • Setting up the domain on Google Postmaster
  • Setting up mailboxes (3 per domain) with given names and profile pictures
  • Running spam test using Mail-tester and GlockApps
  • Maintaining the activity of all mailboxes by logging in multiple times a week, ensuring their activity level, security, and reliability.
  • Configuring mailboxes on Apollo to send only 1 email daily for the first 10 days and then increase by 1 every 10 days – continue for the 60-90 days. (Utilising Apollo’s AI copies)
  • Assigning the mailboxes to reps with proper Apollo settings

Deliverable:
Fully warmed-up domains and mailboxes with optimal deliverability setup, including DNS records, inbox testing, and Apollo configuration for gradual email sending. Includes monitoring, Postmaster setup, and rep-ready handover.

Cost: $200/domain

Cold Email Success:​ Weekly Monitoring and Reporting

Weekly Reporting for Cold Email Performance & Deliverability

Track, test, and optimize every aspect of your cold email outreach with weekly performance analysis, technical audits, and actionable recommendations.
  • Keeping an eye on all running campaigns (covering 10 reps max)
  • Running tests on email copies and providing feedback for optimization
  • Checking Apollo (any other tool) configurations of all mailboxes
  • Running seed list tests and providing all technical feedback
  • Analysis of Google Postmaster data
  • Analysis of DMARC weekly reports
  • Analysis of inbox placement rates from seed list tests, sender reputation scores, bounce rates, open rates, and click-through rates (if applicable)
  • Creating a weekly deliverability report providing an analysis, feedback, and recommendations for all campaigns

Deliverable:
Weekly deliverability reports covering campaign performance, inbox placement, spam signals, and technical diagnostics for up to 10 reps. Includes actionable feedback on email content, Apollo (any other tool) settings, and domain reputation.

Cost: $1000/week

Setting Up Cold Email from Scratch

Everything you need to launch a high-performing cold email system—from strategy and setup to training, warmup, and ongoing optimization.
Please contact us for pricing plans.
  • Business & Outreach Assessment
    Align your cold email strategy with your business goals, value proposition, and compliance needs.

  • Ideal Customer & Lead Research
    Define your target audience, map buyer personas, and ensure lead list quality.

  • Tool & Platform Selection
    Identify and configure the right tools (Apollo, Instantly, Clay, etc.) for scaling, automation, and tracking.

  • Domain Setup & Warmup Management
    Provision new domains, configure DNS (SPF, DKIM, DMARC), mailbox setup, warmup schedule, and Postmaster monitoring.

  • Copywriting & Sequencing Strategy
    Create compliant and personalized cold email templates tailored to your audience and objectives.

  • Team Training & SDR Enablement
    Equip your sales or outreach team with technical knowledge, SOPs, and best practices for cold email outreach.

  • SOP Creation & Process Documentation
    Build a structured, scalable outreach system with clearly documented workflows, templates, and escalation processes.

  • Weekly Monitoring & Optimization
    Provide ongoing oversight, performance tracking, and regular recommendations to maintain inbox placement and improve results.

Cost: Custom quotation based on your specific requirements. Please contact us for details.

Setting up cold email from scratch