Building a Complete Mail Server from Scratch
September 9, 2026
End-to-end guide for building a self-hosted mail server with Postfix, Dovecot, Rspamd, ClamAV, PostfixAdmin, and Roundcube
Technical Posts
A collection of technical guides, tutorials, and reference materials focused on Linux system administration, infrastructure management, and DevOps practices. Topics include ZFS storage management, SSH security and automation, Gentoo Linux configuration, container orchestration with Incus, network administration, and shell scripting techniques.
Browse by topic using the tags below each post, or explore the complete archive chronologically.
Testing and Verifying a Mail Server
September 6, 2026
Comprehensive testing checklist for verifying a complete mail server stack including SMTP, IMAP, TLS, authentication, spam filtering, and webmail
Installing Roundcube Webmail
September 3, 2026
Install Roundcube on Gentoo with Apache and MySQL for browser-based email access with ManageSieve integration and PGP support
Managing Mail Domains with PostfixAdmin
August 31, 2026
Install PostfixAdmin on Gentoo for web-based management of virtual mail domains, mailboxes, aliases, and quotas
Setting Up ClamAV Antivirus for Mail
August 28, 2026
Install ClamAV on Gentoo for email antivirus scanning with automatic signature updates and Rspamd integration
Spam Filtering with Rspamd
August 25, 2026
Install and configure Rspamd on Gentoo for spam filtering with Bayes classification, greylisting, and Postfix integration
Email Authentication: DKIM, SPF, and DMARC
August 22, 2026
Configure DKIM signing with OpenDKIM, verify SPF records, and deploy DMARC policies for outgoing mail authentication
Configuring Dovecot with TLS and Sieve Filtering
August 19, 2026
Install Dovecot on Gentoo for IMAP access and LMTP delivery with TLS encryption, MySQL authentication, and server-side Sieve filtering
Setting Up Postfix with Virtual Mailboxes
August 16, 2026
Install and configure Postfix on Gentoo with virtual mailbox domains backed by MySQL and SASL authentication via Dovecot
Mail Server DNS and TLS Certificates
August 13, 2026
Configure DNS records and obtain TLS certificates for a multi-domain mail server using Let's Encrypt with DNS-01 validation