Services / Expert teams as a service
Messaging freelancer for Exchange and email infrastructure
When your team is missing messaging expertise, for a project, a vacancy or a migration, we reinforce your team directly: per project with a defined outcome, or part-time over several months. Our field is email infrastructure: Exchange Online and Hybrid, encryption gateways, HIN in Swiss healthcare, mail routing and authentication.
- Freelancer
- Contracting
- Part-time
- Exchange
- Mail Gateways
- Switzerland
- Remote & on site
Engagement models
Project engagement A clearly scoped assignment with a defined end: a migration, a gateway replacement, a review. Effort and milestones are agreed before the start.
Part-time over months Embedded in your operations or project team as a contractor, with a fixed workload and fixed availability; also to bridge a vacancy.
Sparring by the hour A second opinion on an architecture or a quote, support during an escalation, coaching for internal admins: short, focused, no minimum volume.
How the collaboration works
Direct, no intermediaries. From the start you talk to the specialists who will do the work; we state terms and availability in the first conversation.
In your tools. We work in your environment: Teams or Slack, your ticket system, your change processes, on managed hardware if required.
Short onboarding. Exchange, gateways and mail routing are our daily work; we need access, not training.
Documented handover. Every engagement ends with documentation your operations team can maintain.
Remote or on site. German-speaking Switzerland, in German or English.
From comparable projects
Further reading
Analyzing Exchange Mail Flow: Message Tracking, SMTP Logs, and Receive Connectors How to systematically determine where a message ended up in Exchange On-Premises, Hybrid, and Exchange Online: queries with sample output, how to read the SMTP log correctly, and the issues that regularly lead to incorrect conclusions. Understanding Mail Routing Between TotemoMail and Exchange Online How TotemoMail stores and processes messages, how the underlying Apache James switches between processors, and what matters for a secure mail loop with Exchange Online. HIN Platform Renewal 2026: Access Gateway, Client, and Deadlines Through September 14 Firewall approval by August 14, Access Gateway version 4 from August 17, SAML endpoints, hardware tokens, and HIN Client by September 14. The mail gateway is not affected and will be replaced separately.
Planning something similar?
In a first conversation, we'll look at where you stand, the risks and the most sensible next step.