iRedMail and Nextcloud Setup on Linux

I'm looking for an expert to install and configure iRedMail and Nextcloud on my Linux server.

Key tasks include:
- Setting up iRedMail for less than 10 email accounts
- Configuring Nextcloud for:
- Calendar and contacts synchronization
- Collaborative editing of documents
- Email integration

Ideal candidates should have prior experience with:
- iRedMail and Nextcloud
- Linux server administration
- Setting up email services and ensuring their correct operation
- Configuring Nextcloud's advanced features like synchronization and collaborative document editing.