Services · Email Infrastructure & Tools
The plumbing behind email that delivers
Authentication, sending domains, platforms and tooling - designed, built and maintained by people who run email infrastructure every day. From a single domain's SPF/DKIM/DMARC to a full self-hosted sending platform.
🏗️ Building Your Large Scale Emailing Platform
Building a scalable email infrastructure requires significant planning and effort. We take this challenge off your shoulders so you can focus on your core business.
What We Build:
Third-Party ESP Implementation
Sendgrid, Sparkpost, ElasticEmail, MailGun, Mailchimp, SendinBlue, or any provider you prefer
Custom Email Infrastructure
Build your own small, medium, or large-scale system with PowerMTA, GreenArrow, MailerQ, Postfix, or other MTAs
Mail Server Solutions
Zimbra, iRedMail, Sendmail, hMailServer, Postal - we help you procure and implement hardware, tools, and licenses
Monitoring Tools Deployment
Self-hosted blacklist monitoring, DMARC analysis tools, seed list testing tools, and cross-device testing
Infrastructure Scaling
Scale existing infrastructure to meet growing email requirements with installation, migration, and maintenance
Secure Email Systems
Build secure email infrastructure for your business including emails over VPN
Ongoing Maintenance
Performance management, end-to-end monitoring, backup setup, real-time alerts, and user management
Team Training
Comprehensive training for your teams to manage and optimize the infrastructure
Custom pricing based on your requirements
Contact Us for Pricing📧 Email Campaigns Management
Email campaigns are a powerful way to engage your audience, but they can be time-consuming. Let us manage your campaigns on the platforms we build so you can focus on running your business.
Campaign Types We Manage:
- Newsletters and regular communications
- eBooks and Whitepapers distribution
- Promotions and special offers
- Drip Campaigns and nurture sequences
- Event Invitations and follow-ups
- Transactional emails
What We Handle:
- Day-to-day campaign scheduling, monitoring, and analysis
- List development, nurture, and segmentation
- List warm-up and re-engaging old customers
- Email list building and maintenance
- Detailed analytics with daily/weekly reporting
- A/B Testing for optimization
- Auto-responders setup and management
Custom pricing based on campaign volume and complexity
Contact Us for Pricing🛠️ Email Marketing Tools Consultation and Implementation
We help you implement and optimize different tools and ESPs for your email marketing needs - from self-hosted solutions to enterprise platforms and deliverability testing tools.
Self-Hosted Email Applications:
Mailwizz
Self-hosted email marketing application with full control
Mumara
Complete email marketing and deliverability platform
Sendy
Cost-effective self-hosted newsletter application
Mautic
Open-source marketing automation platform
Third-Party Email Systems:
Cold Email Outreach Tools:
Gmass, Mailshake, Reply.io, Klenty, SalesHandy, Snov.io, Reifyify, Woodpecker, and more
Deliverability & Email Testing Tools:
- GlockApps - Inbox placement testing
- Mail-tester - Spam score checking
- EmailOnAcid & Litmus - Email rendering and testing
- Self-hosted email list cleaning/verification tools
- Google Postmaster, Microsoft SNDS, ReturnPath feedback loops
- Self-hosted IP blacklist monitoring
DMARC Analysis Tools:
- Our own free DMARC Monitor (dmarc.postboxservices.com)
- DmarcAnalyzer / Dmarcian
- Self-hosted open-source DMARC analysis tools
Email Security:
- Emails over VPN setup
- Encrypted email solutions
- Security consultancy
Free tools that pair with this service
Email Infrastructure - Frequently Asked Questions
We are migrating from ESP A (say SendGrid) to ESP B (say Postmark), who can manage the IP warmup?
We do this regularly, in either direction between any platforms - SendGrid, Mailgun, Mailchimp, Klaviyo, Zoho, ActiveCampaign, GetResponse, Postmark, or your own in-house infrastructure. Migrating ESPs means a new sending IP and often a new signing domain, so reputation must be rebuilt from zero; sending too much too soon gets you throttled or filtered. We plan and run the warmup: a graded volume ramp, DNS and authentication set up correctly on the new platform (SPF, DKIM, DMARC alignment, return-path), engagement-led scheduling, and monitoring of placement and reputation throughout, so you move without a deliverability dip.
We need someone to warm up a dedicated IP for us
We can run the full warmup. A dedicated IP starts with no reputation, so it needs a controlled ramp: small volumes to your most engaged recipients first, increasing daily within provider tolerances, prioritising opens and clicks to build positive history with Gmail, Outlook and Yahoo. We set up authentication and reverse DNS correctly, schedule the ramp, monitor reputation (SNDS, Postmaster, blocklists) and adjust as we go - typically a few weeks to full volume, depending on your target rate.
Who can fix DKIM alignment issues in our Salesforce Pardot setup?
We can. Pardot DKIM alignment problems usually come from Pardot's signing domain (or return-path) not matching your From domain, so DMARC alignment fails even though DKIM technically passes. The fix is configuring Pardot's signing domain and DNS so the DKIM d= and the visible From domain align, and confirming SPF and return-path alignment too. We set the records correctly and verify alignment end to end so your Pardot mail passes DMARC.
Transactional emails started going to spam after we switched ESP, we need help
A new ESP means a new sending IP and often a new signing domain, so your transactional mail is effectively sending from an unproven reputation - and if authentication was not carried over correctly, placement drops immediately. We check that SPF, DKIM and DMARC alignment are set up properly on the new platform, that the return-path and reverse DNS are right, and that the IP and domain are being warmed rather than blasted. Transactional mail recovers fast once authentication and reputation are corrected.