Connect your Business Central to Iceland's digital mailbox.
One secure gateway between all your systems and Iceland's digital mailbox — instead of building integrations one by one.
Island.is Connectors
Iceland’s digital mailbox (Pósthólf on Island.is) is the government’s official communication platform. A document delivered to a citizen’s or business’s digital mailbox carries the same legal weight as registered physical mail — it’s legally binding delivery.
Municipalities, government agencies, and law firms use it daily to communicate with citizens: invoices, notices, decisions, collection claims. It replaces physical mail.
The integration challenge
Connecting to Island.is typically means building a point-to-point integration from each of your systems — your ERP, your case management, your billing system. Each integration needs:
- API authentication and certificate management
- Document format conversion
- Recipient resolution (kennitala → mailbox)
- Category and subject line handling
- Delivery tracking and error handling
- Secure document storage and retention
Multiply that by every system you operate, and the IT cost adds up fast.
CentaraIQ eDelivery — one gateway for everything
Instead of point-to-point integrations, CentaraIQ eDelivery acts as a single secure gateway between all your systems and the Island.is digital mailbox.
Your ERP, your case management system, your billing platform — they all connect to CentaraIQ once. CentaraIQ handles the rest:
- Document translation — converts your documents to the format Island.is expects
- Subject lines & categories — auto-resolved based on document type and content
- Recipient resolution — kennitala lookup and validation
- Secure storage — all documents copied to your chosen storage provider for retention and compliance
- Delivery tracking — full audit trail for every document sent
Storage options
Choose where CentaraIQ stores your document copies:
| Provider | Description |
|---|---|
| Cloudflare R2 | Cost-effective, no egress fees |
| Azure Storage | Enterprise-grade, integrates with Azure ecosystem |
| S3-compatible | Any S3-compatible provider (AWS, MinIO, etc.) |
What you avoid
- No expensive point-to-point integrations per system
- No certificate management headaches
- No Island.is API versioning concerns
- Predictable, transparent costs
- Short onboarding — days, not months
Available connectors
The Island.is Connectors are a collection of Business Central extensions, each handling a specific document type:
| Connector | What it sends | For whom |
|---|---|---|
| Sales Documents | Posted sales invoices and credit memos | Municipalities, government agencies, law firms |
| Collection Claims | Approved collection claims | Municipalities, government agencies, law firms |
| Payroll | Employee payslips | Any organisation using Wise Payroll |
Who can use this
Important: Island.is Pósthólf is only available to municipalities, government agencies, and law firms (for collection claims) that have authorization from the Icelandic government. Standard businesses do not have access to this system.
If you’re unsure whether your organisation qualifies, contact us.