Software meets hardware.
Code, circuits, hydraulics, and the things that connect them.
Projects and practical notes by Jon.
From the workbench
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Back Up, Update, and Recover a Mailcow Server
Commands and a recovery plan for backing up Mailcow, updating it safely, and restoring after server loss.
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Create Your First Mailcow Mailbox, Stop Abuse, and Test Delivery
Create a mailbox, secure it against spam abuse, check DNS and TLS, test both directions, and plan MX cutover.
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Send Mailcow Mail Through Oracle Cloud Email Delivery
Set up a least-privilege OCI SMTP identity and connect Mailcow to an authenticated outbound relay.
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Configure Route 53 DNS for Mailcow: MX, SPF, DKIM, DMARC, and PTR
A plain-English Route 53 guide to mail routing and sender authentication, with safe migration notes.
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Install Mailcow with Docker on Ubuntu
Install Mailcow, start its Docker services, secure the administrator account, and prepare your first mail domain.
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Create an Oracle Cloud Server for Mailcow and Open the Right Ports
Create an Ubuntu VM with a stable IP, then understand the OCI network rules Mailcow needs for mail and web traffic.